Somali pirates attacked an oil tanker Monday farther out at sea than any previous assault, suggesting that pirate capabilities are growing as they increase activity off East Africa, AP reported. Pirates in two skiffs fired automatic weapons and rocket-propelled grenades at the Hong Kong-flagged BW Lion about 1,000 miles (1,600 kilometers) east of the Somali coast, the EU Naval Force said. The tanker"s captain increased speed and took evasive maneuvers, avoiding the attack, the force said. No casualties were reported. The naval force sent a plane from the island nation of Seychelles to investigate. Pirates have launched increasingly bold attacks against vessels in the Indian Ocean and Gulf of Aden in hopes of capturing a ship and crew and collecting ransom. They currently hold more than 190 hostages, including a British couple seized from their personal yacht late last month. The high-seas hijackings have increased despite an international armada of warships deployed by the United States, the European Union, NATO, Japan, South Korea and China to patrol the region. U.S. drones launched from nearby Seychelles are also patrolling the region for pirates. -- SPA