The Costa Allegra is owned by the same company that operated the Costa Concordia, which ran aground off the Italian island of Giglio last month with the loss of at least 25 lives. Planes, ships and tug boats are heading towards the Costa Allegra, which is about 200 miles south-west of the Seychelles. The luxury liner left the port of Diego Suarez in Madagascar on Saturday and was due to arrive in Mahe in the Seychelles on Tuesday. There were no injuries from the fire, which has not spread to other parts of the vessel. But the ship is without power and adrift about 20 miles off Alphonse Island in the Indian Ocean.