ISLAMABAD (AFP) - Pakistan lodged a formal protest with India on Monday over what it said was an unprovoked attack on a border post that killed one Pakistani soldier and wounded another.

Indian and Pakistani troops exchanged fire on Sunday along their disputed border in divided Kashmir, with each side blaming the other for the flare-up.

Pakistan said Indian troops crossed the de facto border known as the Line of Control and stormed a military post, an accusation denied by the Indian army.

Pakistan's foreign ministry said it had handed the Indian deputy high commissioner a "protest note on the unprovoked Indian attack".

"The Indian government was strongly urged to take appropriate measures to avoid recurrence of such incidents in future," it said in a statement.

An Indian army spokesman had accused the Pakistani military of firing mortar bombs into a village in the Uri district in Indian Kashmir.

Muslim-majority Kashmir is a Himalayan region which India and Pakistan both claim in full but rule in part. It was the cause of two of three wars fought since independence from Britain in 1947.

The nuclear-armed rivals have observed a ceasefire since November 2003, but there have been occasional clashes and accusations of truce violations from both sides.

India suspended peace talks with Pakistan after Islamist gunmen killed 166 people in Mumbai in November 2008 - attacks blamed by New Delhi and Washington on Pakistan-based militant group Lashkar-e-Taiba.

Peace talks resumed in February 2011 and both sides have made some progress on less contentious issues such as trade, but remain deadlocked over Kashmir.