One guerrilla was killed Saturday as the army foiled an infiltration bid across the Line of Control (LoC) into Indian territory in Jammu and Kashmir's Kupwara district, defence sources said."Alert troops of the army challenged intruding terrorists on the LoC in Nowgam sector of Kupwara district. One terrorist was killed in the ensuing operation against the terrorists," said a source, adding that the operation was still on "but the infiltration attempt by the terrorists had been foiled".