1. At least 25 people have been shot at a nightclub in the US state of Arkansas, police say.
One person was in a critical condition, later upgraded to stable, but other injuries were not life-threatening. The youngest victim was said to be 16.
The exchange of gunfire apparently took place at about 02:30 local time (07:30 GMT) at a concert, but there was no immediate information about a suspect.
Police said the incident did not appear to be terrorism-related. "We do not believe this incident was an active shooter or terror related incident. It appears to have been a dispute at a concert," Little Rock police department said.
A total of 28 people have been confirmed injured - 25 with gunshot wounds, and three from "unrelated injuries", police said.
ABC had earlier quoted police as saying some had been injured while trying to escape the Power Lounge nightclub. Special agents from the Bureau of Alcohol, Tobacco, Firearms and Explosives were also assisting local police.
2. President Donald Trump has criticised the growing number of US states refusing to pass on voters' details to his commission on electoral fraud.
"What are they trying to hide?", Mr Trump tweeted.
At least 20 states have said that they will not or only partly comply with the request, citing privacy concerns.
Democrats fear that the commission may be used to justify tightening voting procedures - changes which could make certain groups less likely to vote.
The groups most affected by so-called voter suppression tend to vote Democrat.
Trump's voter fraud talk has liberals worried
But it is not just Democrats who are opposed to the collection of such data by the federal government.
Mississippi's Secretary of State, Delbert Hosemann, a Republican, said in an official statement that his reply to the commission would be "they can go jump in the Gulf of Mexico and Mississippi is a great state to launch from".
Mr Trump set up the commission to investigate claims - unsubstantiated, but which he repeats - that millions of fraudulent votes cost him the popular vote in the 2016 presidential election.
He secured more votes in the all-important electoral college than his Democratic rival, Hillary Clinton, thus winning the presidency.
Mr Trump established the Presidential Advisory commission on Election Integrity in May, despite evidence that voter fraud is not a widespread problem in the US.
The aim is to "increase the American people's confidence in the integrity of our election systems".
Kentucky's Secretary of State, Alison Lundergan Grimes, said she would not be releasing "sensitive personal data to the federal government".
"Kentucky will not aid a commission that is at best a waste of taxpayer money and at worst an attempt to legitimise voter suppression efforts across the country," she said in a statement.
3. Numerous People Gathered To Celebrate Canada At 150.
Revellers, police and some protesters have converged on Canada's national capital on Saturday for a party that has been years in the planning.
Canada is marking its 150th anniversary as a country in towns, cities and at backyard barbecues nationwide.
But the biggest bash is at Parliament Hill in Ottawa, where organisers expect hundreds of thousands of people.
And by mid-morning, they had turned out in their droves - albeit huddled under umbrellas, trying to avoid the rain.
Some partygoers, like 24-year-old students Morgan Haines, Jon Salamati and Nima Sahebi, got to the hill before the sun had even risen.
Their early morning netted them a prime spot right next to the main stage, where they said they planned to stay until after the fireworks at midnight.
The three travelled from Vancouver, on Canada's west coast, to celebrate the day in the capital.
"One-fifty is only going to happen once," Mr Salamati said. "By the time we hit Canada 200, we might not be able to do this trip."
But he also took a moment to remember Canada's indigenous people, whom he said had been "the victims of oppression" since the first settlers arrived.
"As a society, we must acknowledge past mistakes," he said, telling the audience that there was still much work to be done in order to achieve reconciliation.
However, Canada, he said, was determined to see a reconciliation over the coming years and decades.
"It is a choice we make not because of what we did, or who we were, but because of who we are," Mr Trudeau said.
Indigenous culture is being represented in many ways across the festivities, and a number of indigenous performers are participating in Canada Day concerts in the capital region.
Some indigenous peoples refused to recognise Canada 150, saying it represented more than a hundred years of colonisation.
Sandwiched between security fences and to the west of the main stage on the parliament's lawn, a group of indigenous protesters have set up a teepee.
They have been allowed to stay on Parliament Hill after erecting the structure in the early hours of Thursday morning in what organisers called a "reoccupation".
Early on Saturday morning, some of the protesters held a sunrise ceremony, lighting a small fire after negotiating with security to bring firewood onto site.
Jess Bolduc, from the Anishinaabe First Nation, said she hoped the day would be one of "conversation and dialogue" when Canada Day revellers flood the lawn.
"In celebrating Canada 150, we're celebrating a half-truth," she said.
"We need to be thinking about the tens of thousands of years indigenous people have been, and continue to be, here."
Across the Ottawa river in Gatineau, Quebec, crowds also lined up to see Prince Charles and the Duchess of Cornwall open a new hall at Canada's Museum of History.
Prince Charles' mother, the Queen, is Canada's head of state.
Rumela Kabir Booth, from an Indian dance school in Ottawa, helped entertain the crowd before their arrival.
"Canada is such a multicultural and inclusive society," she said. "It's great to highlight all the different cultures and aspects that come together."
Canada shelled out an estimated C$500m ($385m; £293m) on everything from festivities to security and infrastructure projects.
Canada Day, held on 1 July each year, marks the merging of three former British colonies into a single new country. It is a national holiday.
The country grew in size and autonomy in the years that followed, but achieved full independence from the UK in only 1982, when the British parliament handed the power to amend the Canadian constitution to Canada.
Businesses have also been trying to capitalise. KFC has temporarily rebranded itself "K'ehFC", in reference to the Canadian slang, while coffee shop Tim Hortons is selling a poutine donut - although only at selected US outlets.