WASHINGTON (Reuters) - There is no reason to believe that U.S. President Donald Trump is the target of any investigation, White House spokesman Sean Spicer said on Wednesday.

"There is no reason that we have to think that the president is the target of any investigation whatsoever," Spicer said at a news briefing. Trump, without offering evidence, said in tweets on Saturday that he had been wiretapped by then-President Barack Obama during the 2016 presidential campaign.

(Reporting by Jeff Mason; Editing by Eric Beech)