Somali pirates have hijacked two vessels in the Gulf of Aden. The International Maritime Bureau on Tuesday said the UK-flagged chemical tanker St. James Park, with 26 crew members aboard, was attacked on Monday night. A spokesman said twenty-six crew members were aboard- including Bulgarians, Filipinos, Georgians, Indians, Poles, Romanians, Russians, Turks and Ukrainians. After the vessel sent a distress signal, a warship from Task Force 151 contacted the ship and confirmed that it had been hijacked. The EU naval force said the St. James Park started its journey on Sunday and was now heading toward the Somali coast adding that it was monitoring the situation. Later, a second vessel, the Navios Apollon bulk carrier, sailing under Panamanian flag and carrying 19 crew members, was attacked. The bulk carrier also was seized in the Gulf of Aden off Somalia. The Navios Apollon is owned by a Greek company and the Maritime Bureau had no immediate information about the ships' cargo or destinations.