Afghan sisters shot dead in 'honour killing'

London, July 23 (IANS) An Afghan man shot his two teenaged daughters dead when they returned home four days after running away with a young man, Daily Mail reported Monday.

The father has been detained on murder charges in Nad Ali district in Helmand province, a hotbed of Taliban insurgency, provincial police spokesman Farid Ahmad Farhang said.

Police have issued an arrest warrant for the young man, who is said to be working as an interpreter with NATO forces, the spokesman said Monday.

Relations between men and women outside marriage are strictly controlled under Islam and infringements are harshly punished by most families in ultra-conservative Afghanistan.