Washington, April 26 -- Donald Trump was unharmed after a shooting scare prompted evacuation of top US officials during the annual White House Correspondents' Dinner on Saturday night.

According to law enforcement officials, a shooter opened fire outside the ballroom at the Washington Hilton, where the event was being held. There were no immediate reports of serious injuries.

All dignitaries under the protection of the United States Secret Service were swiftly evacuated. Trump was escorted off stage amid chaos, briefly stumbling before being assisted by agents.

A law enforcement officer was reportedly struck in a bullet-resistant vest and is expected to be safe.

The incident caused panic inside the venue, with hundreds of guests, incl...