A shell fired near a Yemeni general's military headquarters in the capital Sanaa hit a weapons depot on Thursday, setting off a series of explosions.<br/> <br />A Reuters witness said he heard two blasts and saw a large cloud of dust above the camp where General Ali Mohsen Al-Ahmar is based.<br/> <br />Ahmar defected during last year's uprising, and now leads part of the army under President Abd-Rabbu Mansour Hadi.<br/> <br />A source in Ahmar's force, known as the First Division, said a shell fired from outside the headquarters had landed on an ammunition cache, setting off the explosions.<br/> <br />He added that there were no casualties and an investigation was underway to determine who had fired the shell.<br/> <br />The Yemeni Defence Ministry said the blasts were caused by an accident in an ammunition depot.
