The monument was reopened a few hours later

Up to 1,400 people were evacuated from the Eiffel Tower last night after an anonymous bomb threat.

Tourists were sent away from Paris’ most famous tourist attraction after a call threatened an attack at 9.30pm (8.30pm GMT).

Police cordoned off the area and searched the monument with sniffer dogs, however no explosives were found and the site was reopened almost three hours later.

Bomb alerts targeting monuments and public places happen frequently in Paris, and the Eiffel Tower was evacuated at least once last year and twice in 2011 over similar warnings. All alerts are “treated very seriously,” police said.

French authorities have stepped up counter-terrorism measures in recent weeks amid heightened concern about threats to France over its military campaign against al-Qaeda-linked fighters in