This video can not be playedWatch: Floods tear through Libyan city of DernaRescue teams in Libya are struggling to retrieve the bodies of victims that have been swept out to sea in tsunami-like flood waters. "Your device may not support this visualisationKasim Al-Qatani, an aid worker in the town of Bayda, told the BBC's Newsnight programme it was difficult for rescuers to reach Derna as most of the main paths into the city were "out of service because of huge damage". The BBC is not responsible for the content of external sites