Christians in Nepal are alarmed after this month’s sudden series of arson and bomb attacks on four church buildings, and church leaders suspect authorities are lax in investigating.

At the same time, six Christians were arrested for evangelizing while suspected Hindu extremists launched attacks on three church buildings and bombed another. The attacks caused extensive property damage but no casualties. The Hebron Church building in the eastern hilly region was set on fire on May 9, Emmanuel Church’s building in western Nepal’s Doti District was burned on May 10, and the Kanchanpur Emmanuel Church building in the Midwest hilly region was set ablaze on May 11. Before midnight on May 12, the Mahima Church building in Dhangadhi, in western Nepal, was bombed. Neither government officials nor police have issued a formal statement on suspects, though police have attributed the attacks to the Nepal Communist Party, known as the Biplab Group. But Christian leaders in Nepal suspect a coordinated campaign by Hindu extremists.