A suicide attack claimed by the Taliban killed seven people, including an American and a Norwegian journalist, on Monday at a luxury hotel in Kabul where the Norwegian foreign minister was staying.
Minister Jonas Gahr Stoere was unhurt in the attack at the five-star Serena Hotel.
The Taliban claimed responsibility for the attack, in which police said up to four attackers threw hand grenades at the gates, shot their way into the high-walled compound and at some point set off a suicide bomb.
Afghan officials have arrested four men, including one suspected of wearing a police uniform during the multi-pronged assault.
Police said they also found a video made by two of the attackers in a home in Kabul, where they arrested two men. A fourth man — believed to have driven the attackers to the hotel — was arrested in eastern Afghanistan.
In Washington, US State Department spokesman Gonzalo Gallegos said an American was among those killed.
An Afghan interior ministry spokesman said six people, most of them security guards, were killed, and a Norwegian newspaper said one of its journalists died later of his wounds.
Dagbladet said in its online edition that correspondent Carsten Thomassen, 39, had died on the operating table at a Czech field hospital where he was taken after being shot.