Four militant groups on Saturday issued new death threats to people planning to travel on the buses that will soon resume service between both Kashmirs. The bus route, set to start open April 7, will connect Srinagar and Muzaffarabad. "We once again warn those people who are riding the Srinagar-Muzaffarabad bus that they should desist from it because they have no right to mock the blood of the martyrs and should not play with their own lives for the sake of frolic," said a statement signed by the commanders of the four militant groups and faxed to The Associated Press' Srinagar office.The militant groups that signed the statement are Al-Nasireen (The Helpers), the Save Kashmir Movement, Al-Arifeen (The Pious) and Farzandan-e-Millat (Sons of the Community). The first two groups are major militant movements, while the others are little known. The groups had issued a similar warning three days earlier. There was no way to independently verify the authenticity of the fax.