Afghanistan reported that 58 Pakistani soldiers were killed in clashes, but did not provide details on the source of this information.
Pakistan closed its border crossings with Afghanistan on Sunday, according to Pakistani officials, following an exchange of fire between the two countries' forces overnight.
Pakistani security officials stated that they inflicted casualties on the Afghan force, but did not provide a number.
Reuters was unable to independently verify the accounts, and both nations claimed to have destroyed each other's border posts.
Author's summary: Clashes erupt on Afghanistan-Pakistan border.