CNN | ISIS militants believed to be holding 9 foreign oil workers in Libya CNN The kidnapped foreigners were working for VAOS, an Austrian-owned oil services company whose headquarters are in Tripoli, the Libyan capital. They include four Filipinos, an Austrian, a Czech and a Ghanaian, according to the Philippine foreign ministry. Libya violence: Foreign oil workers 'kidnapped' ISIL accused of kidnapping foreign oil workers in Libya ISIS beheads 8 Libyans in oil field attack |