Bagus BT Saragih, Jakarta – National Intelligence Agency (BIN) head Lt. Gen. Marciano Norman says the Military Police are investigating the alleged involvement of a military general in recent spate of violence by so-called "biker gangs".

But he hinted at possible punishment that could only go as far as "disciplinary measures" for any Indonesian Military (TNI) member found to be guilty.

"I believe the TNI has good performance in enforcing disciplinary measures given the fact that [what the gang members did] involved criminal acts," Marciano said on Friday at the State Palace.

Jakarta Military Commander Maj. Gen. Waris previously said that a military member who had higher rank than him had allegedly been involved in biker gang attacks.

In response to the biker gang issue, President Susilo Bambang Yudhoyono had summoned Jakarta Police chief Ir. Gen. Untung Suharsono Rajab and Waris to his residence in Cikeas, West Java, Waris said.

"In the meeting, I told the President to forgive me because I was still unable to deal with my extreme senior," Waris said as quoted by kompas.com. Waris did not disclose the identity of the senior he was referring to, but claimed to have revealed it to the President.

According to Waris, there are four military members who are under investigation by the Military Police for their alleged involvement in the attacks.

A string of vigilante acts in Jakarta left two civilians dead and 15 others injured. The attacks are believed to be a form of retaliation for the killing of a member of the Navy, Arifin Sirih, by a group of people on Jl. Benyamin Sueb in Pademangan, North Jakarta, on March 31. (mtq)