Afghanistan on Wednesday cancelled a planned army visit to Pakistan to protest against alleged cross border shelling.

Afghanistan on Wednesday cancelled a planned army visit to Pakistan to protest against alleged cross border shelling, the latest sign of deteriorating relations between the troubled neighbors.

The Pakistani army invited 11 Afghan officers to take part in a military exercise and drill in the southwestern city of Quetta, the Afghan foreign ministry said.

"This visit will no longer take place due to the resumption of unacceptable Pakistani artillery shelling against different parts of Kunar province," it said.

Kunar provincial governor Fazlulah Wahidi told Agence France Presse that up to 50 rockets, fired from the Pakistani side of the border, landed in two districts on Monday and Tuesday, damaging property.

Afghanistan and Pakistan are deeply distrustful of each other and trade blame for Taliban violence plaguing both sides of their 2,400-kilometer border, known as the Durrand Line, drawn up by British colonialists.

Relations had recently improved, building up to a three-way summit hosted by British Prime Minister David Cameron on February 4 as part of efforts to end 11 years of war in Afghanistan.

Cameron held a telephone conversation with Afghan President Hamid Karzai Wednesday evening to follow up on the London talks and discuss Afghanistan's relations with Pakistan, according to an official statement that did not elaborate further.