LIBYA'S eastern-based authorities are investigating the disappearance of a member of parliament, the region's interior ministry said, and it did not believe he had been killed. The House of Representatives (HoR) member for Benghazi, Ibrahim Aldrasi, is missing after a robbery at his home, the media manager of the ministry said in a statement on Friday evening. The ministry in the government of Osama Hamad - a rival to the internationally recognised government in Tripoli - said it had taken "immediate steps to investigate this incident". "The Ministry of Interior also strongly denies the news being circulated about his (Aldrasi's) killing," the…