Obama spoke to Trump by phone on Saturday

Barack Obama has again spoken with Donald Trump over the phone, but the White House declined to say what they spoke about.

President Barack Obama spoke to President-elect Donald Trump by phone on Saturday, a White House spokesman says.

The conversation was "one of a handful" between the two men since the November 8 election, White House spokesman Josh Earnest told a regular news briefing.

He declined to say what they talked about.