The Armada was first sighted by the English off Lizard Point, in Cornwall, on 19 July, and the first engagement took place off Plymouth on 21 July. In four hours the Spanish fired 720 round shot and the English 2,000 rounds, but little real damage was done to either side. In fighting off Portland Bill on 23 July, some 5,000 shots were discharged by the rival fleets. Spanish casualties were about 50 killed and 70 wounded. After another engagement off the Isle of Wight on 24 July, in which the Armada lost another 50 men slain, Medina Sedonia steered for Calais to replenish his empty powder and shot stocks from Parma's ammunition depots. Parma, however, blockaded in Bruges by 60 Dutch ships, was unable to come to the Armada's assistance. After an indecisive engagement with the English off Gravelines, the Armada ran out of ammunition. The Spanish had expended 125,000 cannonballs against the English. Consequently, the Spanish commander decided to retreat to Spain by going north around Scotland and Ireland. The Spanish ships were dispersed by storms; their provisions gave out, and many of those who landed in Ireland were killed by English troops. Only about half the fleet reached home. An English Armada sent to destroy the port at A Coruña in 1589 was itself defeated with 40 ships sunk and 15,000 men lost. In October 1596, another Armada left Lisbon. The invasion fleet numbered 126 ships and carried 9,000 Spaniards and 3,000 Portuguese. The Royal Navy was unprepared, but England was saved by stormy seas that wrecked 72 ships and drowned 3,000 sailors and soldiers. The following year, in October 1597, yet another Armada was sent out, but this also was blown back.