In early June 2009, Massi attempted to enter the Central African Republic from Chad and was arrested by the Chadian authorities, who announced that they would put him on trial for "attempting to destabilize a neighbouring country". The Chadians reportedly released Massi after a time, however. Massi's group, then called the Convention of Patriots for Justice and Peace (CPJP), continued to fight the government in the northwest of the Central African Republic; by that point it was the only rebel group still active.