A top Maldives official says the military has found and deactivated an explosive device near the president's official residence.

The discovery came a month after an explosion occurred on President Yameen Abdul Gayoom's boat, injuring his wife, an aide and a bodyguard. Authorities described the blast as assassination attempt and arrested the vice president.

But on Saturday, the FBI said its investigation found no evidence that the explosion was caused by a bomb. The FBI investigated the explosion at the request of the Maldives authorities.

Maldives Home Minister Umar Naseer says an improvised explosive device was found Monday in a parked vehicle near the president's official residence. Gayoom does not live at the residence but uses it frequently for meetings.