File photo taken on Jan. 19, 2017 shows that police officers stand guard in front of Trump International Hotel one day before U.S. presidential inauguration ceremony in Washington D.C., the United States. (Xinhua/Yin Bogu)

WASHINGTON, May 31 (Xinhua) -- One man was arrested early Wednesday in his room at the Trump International Hotel, five blocks away from the White House, after two weapons and ammunition were found in his vehicle, police said.

Washington D.C. police acted on a tip about 1:50 a.m. local time (05:50 GMT) and found a Bushmaster AR-15 assault-style weapon in a vehicle driven by Bryan Moles, a 43-year-old man from neighboring Pennsylvania, who had given the vehicle to a hotel valet.

A Glock 23 handgun was also found in the glove box of the vehicle, police said, along with 30 rounds of 7.62-mm ammunition and 60 rounds of .223-caliber ammunition.

Moles has been charged with possession of firearms without a license and illegal possession of ammunition, according to a Washington Post report.

Dustin Sternbeck, chief spokesman for the D.C. police, said the police had received reports "that he (Moles) had made threatening remarks," but he didn't provide further details.