The Secret Service says a person is in custody after they jumped over a barrier along the north fence of the White House and briefly put the building into lockdown.

Security had been especially tight because President Trump was holding talks there with Turkey's president, Recep Tayyip Erdogan.

Secret Service responding to an individual who jumped the bike rack along the North Fence Line of Penn Ave. Suspect in custody. — U.S. Secret Service (@SecretService) May 16, 2017

There were protests in front of the White House for Mr Erdogan's visit.

He had left the building when the security alert began.