An explosion was heard in the Lebanese capital late Wednesday and local television stations said the blast rocked a mountain resort overlooking Beirut.
The explosion hit the Druse town of Aley around 9 p.m. (1800GMT) and was heard as far as Beirut's Mediterranean coastline, TV reports said. It was not clear what caused of the explosion.
Two explosions on Sunday and Monday killed a woman and injured a dozen people in two neighborhoods of Beirut, as the Lebanese army battled militants holed up in a refugee camp near the northern port city of Tripoli.
Russian President Vladimir Putin, in his speech dedicated to the Day of the Russian Navy, recalled the threats that Russia is currently facing from a number of countries.