Brazil's former president, dubbed "the most popular politician on Earth", remains holed up inside a steelworkers union surrounded by hundreds of fervent supporters, after defying a judge's order to turn himself in to police over corruption charges.

Arizona and Texas announce they will send 400 National Guard members to the US-Mexico border by next week in response to US President Donald Trump's call for troops to fight drug trafficking and illegal immigration.

Ever sent a message and then wished you could take it back? According to Facebook you might soon be able to do just that with the platform promising to make the feature available to all users.

The United States imposes major sanctions against 24 Russians, striking at allies of President Vladimir Putin in one of Washington's most aggressive moves to punish Moscow for its alleged meddling in the 2016 election and other "malign activity".

Victorian Marc Leishman's blazing five-under-par second round has pushed him to second at the Masters, two shots behind leader Patrick Reed.