US & Canada
US presidential front-runners, Democrat Hillary Clinton and Republican Donald Trump, have continued their winning streaks, taking Arizona.
Canadian Prime Minster Justin Trudeau's Liberal government has delivered its first budget, hoping to spur the fragile economy with more spending.
The US Air Force is investigating 14 guards at a nuclear weapons site after they were accused of using illegal drugs, including cocaine.
A student who stabbed four people at a California university was inspired by the so-called Islamic State group, the FBI has said.
Canadian Prime Minister Justin Trudeau has said that he will lower eligibility for Old Age Security to age 65 from 67, reversing his predecessor's policy.
A homeless man from San Francisco is to be given a reward of $100,000 (£71,000) for helping police recapture two prison inmates who had escaped.
About 20 people people have been injured in the US after an Amtrak train derailed 20 miles (32km) west of Dodge City, Kansas.
"As it usually does, it comes down to Florida. It always comes down to Florida."
