Indonesian police has intensified efforts to hunt perpetrators of bloody explosions on Oct. 1 in Bali island that killed 27 people, by questioning more suspects and beefing up surveillance on some provinces, a police spokesman said here Wednesday.

"After Bali bombings, some provincial police are ordered to strengthen their surveillance ... of possibility the perpetrators hide in the certain province," spokesman Bambang K told a press briefing at the police headquarters here.

"Besides Bali provincial police, the command also directed to the provincial police which in the past had got indication that linked with the Bali bombing," he added.

In addition, the police had also investigated over 75 witnesses in Bali province, he said.

"After question the 75 witnesses the investigators have got some information that can be developed," said Bambang.

The witnesses included a person who recorded the moment when the suicide bomber did his action in Rajas cafe, he said.

"The video record has been obtained, it is hoped that with this facility, it could help police efforts," he said.

The blasts have also wounded 124 people, but the police said that the fatalities are 22, most of the victims are Indonesians.

The spokesman reaffirmed that among the deaths, two foreign citizens were identified from Japan and Australia.

Of the 124 wounded, only 18 are still treated in hospitals now.

Source: Xinhua