Two suicide bombers have targeted a guesthouse in the Afghan capital, Kabul, killing two staff members, say police and interior ministry officials.
A firefight broke out when guards challenged the attackers as they tried to enter the hostel, in the central Taimani area, say police.
One attacker blew himself up and the other was shot dead. Two drivers employed by the guesthouse also died.
Despite its ring of steel, Kabul has been attacked several times this year.
Two security guards were injured in Tuesday's assault, the interior ministry told the BBC. Earlier reports suggested a guard had been killed.