An Indonesian court has opened the trials of four members of China's ethnic Uighur minority charged with involvement in terrorism activities and using fake passports.

Ahmet Mahmud, Abdullah alias Altinci Bayyram, Abdulbasit Tuzer, and Ahmet Bozoglan were arrested in September while trying to meet Indonesia's most wanted extremist Abu Wardah Santoso in Central Sulawesi province.

The four are being tried in two separate trials at the North Jakarta District Court. Prosecutors said the group has violated the country's harsh anti-terror law with their involvement in an evil conspiracy with Indonesia terrorists.

Also on trial at the same court Monday are four Indonesian militants associates of Santoso, who is known as the leader of Mujahidin Indonesia Timur and a fugitive militant alleged to be behind the murders of police.