The incident is the third of its kind in recent weeks in which Tajik border guards and civilians have been killed.

Five people have been killed in a firefight between border guards and intruders on Tajikistan‘s border with Afghanistan, the Tajik border protection agency says.

Heavily armed raiders from Afghanistan crossed into Tajikistan at the village of Kavo in the Shamsiddin Shokhin district on Tuesday and were located on Wednesday, according to a statement by the border agency published by Tajik news agency Khovar.

The border agency said the men attacked a guard post, killing two border guards, and three of the intruders died in the ensuing gun battle.

The agency said the incident was the third of its kind in recent weeks in which Tajik border guards and civilians were killed.

The border guards secured the weapons and ammunition used by the intruders, including grenades, three M-16 rifles, a Kalashnikov assault rifle, three foreign-made pistols with silencers, 10 hand grenades, a night-vision scope, explosives and other ammunition at the scene, the agency said.

“The terrorists refused to obey orders from Tajik border guards to surrender and offered armed resistance. They intended to carry out an armed attack on one of the border posts of the Border Troops of the State Committee for National Security of the Republic of Tajikistan,” the statement said.

Chinese citizens working for a mining company in the region have also been among those killed.

The latest incident demonstrated “the Taliban government’s failure to fulfil their international obligations and repeated commitments to ensuring security and stability along the state border with the Republic of Tajikistan and to combating members of terrorist organisations, reflecting serious and recurring irresponsibility”, the statement added.

It agency said that it expected an apology from the Afghan leadership.

Tajikistan will defend its territorial integrity against “terrorists and smugglers” by all means, it added.

Afghanistan has not yet commented on the incident.

Drugs from Afghanistan are smuggled into Central Asia across the largely unsecured 1,340km (830-mile) border. Russian forces are stationed in Tajikistan and have in the past participated in joint exercises with Tajik forces to help secure the border.