At least seven children from the same family were killed Monday and another three were wounded when a bomb exploded in the eastern border province of Paktika, Afghan officials said.

The blast occurred near the family's home in the Mulazi district.

"Four children were killed in the act and another three died later in hospital of their injuries. All belonged to the same family," the spokesman for the provincial government, Mokhlis Afghan, told the Afghan news agency AIP.

An official source cited by Afghan media outlet Pajhwok raised the number of wounded to five and also said that seven were killed by the explosion, which was attributed to a mine.

Such incidents are constant in Afghanistan, particularly in the conflicted southwestern region on the Pakistan border, stronghold of the Taliban seeking to bring down the government.

During this final phase of NATO troop withdrawals, the Afghan war has entered one of its bloodiest moments since the United States invaded the country in late 2001.

According to a United Nations report, the conflict in the South Asian country has left 2,759 civilians dead and 4,805 wounded, 81 percent of them in attacks perpetrated by the insurgents. EFE