Sadiq Khan, the Mayor of London, attends an event to mark the anniversary of the attack on London Bridge, in London

London - Opposition members urged Prime Minister Theresa May's Conservative party Friday to suspend a lawmaker after he tweeted an image of London's first Muslim mayor as a flying inflatable pig with a second pig behind it in an apparently sexual position.

"Can't believe Mike Fabricant tweeted that vile, Islamophobic image of [London Mayor] Sadiq Khan - thought it was a spoof," Labour lawmaker Chuka Umunna tweeted.

Can’t believe @Mike_Fabricant tweeted that vile, islamophobic image of @SadiqKhan - thought it was a spoof. He has just deleted it. Describes himself as an “MP dude” in his twitter profile but is clearly an “MP idiot”. @SayeedaWarsi is right on this - her party has a problem.

Fabricant later deleted the tweet, claiming he "did not see the detail on my small iPhone."

"I stupidly tweeted it in a meeting without checking it properly and hadn't spotted there was a face on it," he tweeted.

"I am genuinely sorry if it caused anyone offence."

pic.twitter.com/zeUIuMtXHf

Another Labour lawmaker, Afzal Khan, said the tweet was "abhorrent."

"Tory members, the former chair of the party, Sayeeda Warsi, and the Muslim Council [of Britain] have all called for an inquiry into Islamaphobia [in the Conservative party]," he tweeted, adding that Fabricant "must be suspended immediately."

The image included the joke caption: "Breaking news: Trump defeats Sadiq Khan in balloon wars," after the mayor's office allowed protesters to fly a 6-metre inflatable orange baby bearing Trump's face on Friday.

"I had been on TV saying that I thought the blimp was hypocritical, and when someone sent me the pic on my iPhone I thought it was a flying pig humping the Trump blimp," Fabricant claimed.

Trump has also been accused of racism against Sadiq Khan. The US president criticized Khan again in a controversial interview published by The Sun late Thursday.

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