The official said 12 people had been confirmed dead at the morgue in Bali, while family and hospitals in Australia had confirmed the deaths of another 18.

The death toll includes two people who died after being airlifted back to Australia.

The spokesperson said 113 Australians had suffered serious injuries in the attack and inquiries were continuing into the whereabouts of at least 160 Australians still listed as missing.

Four French missing

Four French nationals are listed as missing and seven were injured, three seriously, in the deadly weekend car bomb attack on the Indonesian island of Bali, the French foreign ministry announced Tuesday.

"At this point, we've had no news from four French tourists who were staying near the site of the attack," ministry spokesperson Francois Rivasseau told reporters.

"We have to consider the possibility that they are among the dead," he added, noting that specific evidence indicated that at least one of the four, who were not identified, had been killed.

The Saturday night attack on a packed nightclub in the Kuta district on the resort island killed nearly 200 people and injured several hundred others.

Of the seven French nationals injured in the explosion, three were evacuated to hospitals in Singapore in serious condition while the others were treated and able to return to their hotels, Rivasseau said.

The spokesperson said Paris had not yet decided whether to send investigators to Bali but that French authorities were cooperating with Indonesian officials.

France has urged its citizens not to travel to Bali in the wake of the attack, and has warned travellers to postpone all unnecessary trips to other parts of Indonesia.