A suicide attack in the Afghan capital, Kabul, on Wednesday killed five people and wounded 33 others, including at least four children, said Hashmat Stanikzai, Kabul’s police chief.
An explosive-laden car was detonated as a foreign embassy convoy was passing in the 9th District police zone, said Interior Ministry spokesman Sediq Sediqi.
The UK Foreign Office said two of those killed worked for the British Embassy.
One of the dead was a British national, a civilian security team member, and the second was an Afghan national working for the embassy, Foreign Secretary Philip Hammond said in a statement.
A second British member of the security team was injured, he said.
“I condemn this appalling attack on innocent civilians supporting our diplomatic activity,” Hammond said.
“This outrage brings home to us once again the courage and perseverance of the people of Afghanistan and members of the international community who support them, who have lived together through decades of conflict.”
British security firm G4S confirmed in a statement that the security workers caught up in the blast were its staff and offered its condolences to their families and friends.
“An investigation into the incident is under way and therefore we are unable to comment further at this time,” it said. “Next of kin have been informed and we will continue to provide them with support.”
Police in Kabul had earlier said that at least one British diplomat was killed after a large explosion damaged a convoy of foreign embassy cars in the capital.
The Taliban have claimed responsibility for the attack.
Pictures from Mustafa Deveci, a witness at the scene, showed at least five vehicles damaged at the site of the blast with their windows blown out.