Human rights organisations expressed alarm on Tuesday over the disappearances of two Baptist pastors who had shown journalists a Catholic church allegedly damaged by airstrikes by Burma government forces who are fighting ethnic Kachin rebels.

Langjaw Gam Seng, 35, and Dumdaw Nawng Lat, 65, were summoned to an army base in northern Shan state in north-eastern Burma on December 24. Heavy fighting has been occurring in the area between the government and a coalition of Kachin and three other ethnic guerrilla groups. Burma's army has often been accused of human rights abuses in its decades-long battles with ethnic rebels seeking greater autonomy.