Afghanistan has called on Pakistan to halt cross-border shelling, warning the UN Security Council the attacks could jeopardize already tense relations between the two countries.
A UN envoy meanwhile said there were a growing number of "uprisings" against the Taliban in areas of Afghanistan under the Islamist group's control.
Afghanistan's Foreign Minister Zalmai Rassoul said on Thursday that attacks from Pakistan into his country were "a matter of deep and serious concern" and had caused "unprecedented anger and frustration among Afghans".
Afghanistan has accused Pakistan of repeated shelling barrages across the poorly policed border into Kunar province.
"We reiterate our call for an immediate and complete end to these acts, which have taken the lives of dozens of Afghans, mainly civilians, while leaving many wounded," Rassoul told the 15-nation council.
He said the Afghan government was in contact with Pakistan to end the attacks "holistically and resolutely".
Rassoul said Afghanistan wants "close and fruitful relations" with its neighbour, which has frequently been accused of backing Taliban militants seeking to overthrow President Hamid Karzai's government.
Pakistan says groups of Pakistani Taliban sheltering in Afghanistan have infiltrated the border to resume attacks on its security forces.
The UN special representative in Afghanistan Jan Kubis meanwhile told the meeting that "reports of uprisings against the Taliban in various parts of the country are a new development requiring greater analysis".
"Many of these localised conflicts would appear to be resistance to the Taliban, but not necessarily in support of a greater government presence," he said.
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