SRINAGAR, India (Reuters) - Six Indian soldiers and eleven Kashmiri nationalist fighters were killed on Tuesday in a gun battle in Indian-ruled Kashmir as violence intensified after the prime ministers of Pakistan and India discussed ways to improve relations.

A police officer said the gun battle was still going on in the remote Doda district in the southern part of Kashmir.

Indian forces earlier on Tuesday gunned down a suspected Kashmiri fighter who was part of a group trying to storm into an Indian army camp in Kupwara district.

Pakistani Prime Minister Mir Zafarullah Khan Jamali spoke by telephone on Monday with Indian Prime Minister Atal Behari Vajpayee, marking the first high-level contact between the nuclear-armed neighbors since they came close to war last year over Kashmir.