The Argentine Air Force reacted by sending IAI Dagger and A-4 Skyhawk attack aircraft, and Mirage III interceptors. The Mirage III went into combat with the Harriers on Bourbon Island, with one Mirage lost to a Harrier. On May 21, the Battle of San Carlos ("Bomb Alley") began when the Air Force attacked a detachment of British ships making a landing in the San Carlos Water. The Dagger and Skyhawk aircraft sank three British ships (HMS "Coventry", a Type 42 destroyer; two frigates, HMS "Antelope" and HMS "Ardent") and damaged another eight ships.