Algerian troops ended a siege by Islamist militants at a gas plant in the Sahara desert where 23 hostages died, with a final assault which killed all the remaining hostage-takers.
Believed to be among the 32 dead militants was their leader, Abdul Rahman al-Nigeri, a Nigerien close to al Qaeda-linked commander Mokhtar Belmokhtar, presumed mastermind of the raid.