Libya: At least 11k are now believed to have died — a devastating toll that could largely have been avoided, global officials said.

A precise tally of the rising number of people killed is incredibly difficult to compile given the level of destruction in Derna and the chaotic political situation in the region.

At least 11,300 are now believed to have died after torrents of water ripped through eastern Libya — a devastating toll that could largely have been avoided, global officials said Thursday.

Marie el-Drese, secretary general of the Libyan Red Crescent, told The Associated Press by phone that a further 10,100 had been reported missing in the ruined city of…