Indonesian police said they have arrested two more suspected militants including a member of China's ethnic Uighur minority who was allegedly preparing to be a suicide bomber.

National Police spokesman Maj. Gen. Anton Charliyan says the suspects were captured in two separate places Wednesday in Bekasi, a West Java town bordering with eastern Jakarta.

The arrests of Arif Hidayatullah, alias Abu Mush'ab, and Alli, the Uighur who used a fake identity card, came as security has been stepped up after officials described a credible threat of attacks, especially against minority Christians, during the year-end holidays.

The government has deployed 150,000 security personnel to safeguard churches, airports and other public places across this predominantly Muslim nation.