Indonesian embassy in Canberra, Australia, resumed operation Friday after two-day closure, but still on alert of security threat, Indonesian foreign ministry spokesman said here Friday.

"Today, our embassy re-opens. It indicates that we do not surrender to the intimidation from those sending the letter," Marty Natalegawa said at a press conference.

"The alert is still remained, as President Susilo asked all our representative offices overseas to beef up security. We impose the alert particularly in our embassy in Canberra," he added. As the Indonesian police and the Australian Federal Police were jointly conducting investigation on the biological powder sent to the embassy on Wednesday morning, the spokesman said that the Indonesia government will give assistance to the Australian police to reveal the case.

"The Australian government will ask a permission of the Indonesian government to partially revoke immunity of the Indonesian embassy staff members, whose testimonies are needed to pave the way for the investigation," Marty said.

The Indonesian embassy was closed soon after the office received a biological agent in a form of white powder in an envelope. Preliminary tests confirmed the powder to be biological agent of the Bacillus group of bacteria, ranging from the causative agent of anthrax to relatively harmless germs.

The incident is regarded as an apparent reprisal for Australian student Schapelle Corby's 20-year jail in Indonesia for drug smuggling.

Corby, 27, was sentenced to 20-year imprisonment by an Indonesian court last week. The ruling has incurred protest by the Australians who believe Corby is innocent.

The two nations stated that their diplomatic ties will not be disturbed by the security scare.

Source: Xinhua