An explosion has been heard in the centre of Libya's capital city, according to Sky News correspondent Lisa Holland. Speaking from Tripoli, she said: "We've heard of two bombs this morning in the last half hour.
"The first didn't appear to detonate. The second was in the general vicinity of Colonel Gaddafi's compound - that's not to say that the compound was actually hit - but it was in the north-west direction of central Tripoli.
"The blast comes after three explosions late last night, one in the same area and two to the west of Tripoli - further out.
"It's the first time, as far as I'm aware, that we've had a day-time explosion here in Tripoli, air strikes previously have been at night. So perhaps there could be some sort of a change of tactics although it's still too early to judge.
"One thing we can say for sure is the military intervention continues." Source
