President Donald Trump picked Wall Street financier Anthony Scaramucci, a long-time supporter, to be his White House communications director on Friday, a White House official said.

Currently at the Export-Import Bank, Mr. Scaramucci is expected to start his new job in August, the official said. No other changes were immediately expected in a communications operation that includes press secretary Sean Spicer and his deputy, Sarah Sanders, the official said.

The appointment comes as the White House deals with questions around a special counsel probe and several congressional investigations into alleged Russian meddling in the 2016 U.S. presidential election and potential collusion with Trump's campaign.

The communications position has been vacant since Michael Dubke resigned in May as communications director. Mr. Spicer has been serving a dual role as press secretary and communications director since Mr. Dubke left.

The official, who spoke on condition of anonymity, said Mr. Scaramucci was interviewed by Mr. Trump on Friday morning and the job had been offered and accepted.

Mr. Scaramucci, a Republican fundraiser and founder of Skybridge Capital, was earlier offered the post of U.S. ambassador to the Organization for Economic Cooperation and Development in Paris.