British PM David Cameron laughs off Twitter parodies of Barack Obama call

Photo has been taken from the twitter account of @David_Cameron

London:  British Prime Minister David Cameron on Friday laughed off the widespread mockery of a photo he posted on Twitter of him looking serious while on the phone to US President Barack Obama.

In a tweet to actor Patrick Stewart, one of those who had parodied Cameron's photo, the premier posted a snap of a meeting with former US President Bill Clinton, "this time face to face, not on the phone".

On Wednesday, Cameron posted a photograph of himself discussing the situation in Ukraine in a telephone call with Obama.

His grave expression was intended to convey the seriousness of the subject, but it was mercilessly mocked online.

US comedian Rob Delaney posted a picture of himself looking serious with a tube of toothpaste held up to his ear, writing: "@David_Cameron @BarackObama Hi guys, I'm on the line now too. Get me up to speed."

Stewart, best known for his long-starring role in "Star Trek", responded with his own photograph looking serious with a tube of wet wipes at his ear.

"@robdelaney @David_Cameron @BarackObama I'm now patched in as well. Sorry for the delay," the 73-year-old tweeted.

Cameron met with former president Clinton at his Downing Street office on Friday, and afterwards tweeted a photo.

"@SirPatStew Talking to another US President, this time face to face, not on the phone," the prime minister wrote.