Throughout the 1990s the occupying Indonesian forces stepped up their actions against the resistance and factional troubles between FRETILIN and other resistance organisations plagued the CNRM, with FRETILIN members signing a document against the leadership of Santana. Sabalae, the leader of the Clandestine Front, disappeared in June 1995 ((captured near Gleno by ABRI on 1 June 1995)). Gusmão remained supreme leader of CNRM and Commander in Chief of FALINTIL despite being incarcerated in an Indonesian prison. On 31 May 1997, the East Timorese guerrillas killed 16 policemen and 1 soldier in an ambush near the Abafala Village. ((near Quelicai, southeast of Baucau)). In 1998 Santana died in an accident and the FALINTIL commander, Ruak, was elected as leader of "the Struggle", whilst also remaining operational commander of FALINTIL. In April 1998 during the National Convention of East Timorese Living Abroad, held in Portugal, the "Conselho Nacional da Resistência Timorense" (CNRT), the National Council of Timorese Resistance, was formed, replacing CNRM and reinforcing the previous attempts to unify all the factions of the resistance struggle against Indonesia.