Yemeni forces ended a hostage crisis yesterday with 29 police and six civilians dead, a day after the attack claimed by the Islamic State group began with suicide bombings, official sources said.

Assailants on Sunday stormed the criminal investigations unit in Aden, the Yemeni government's de facto capital, setting it alight and taking hostages after killing two policewomen execution-style.

The attack began on Sunday, when two suicide bombers blew themselves up at the entrances to the criminal investigations unit and the city's security headquarters.