"The death toll in the traffic accident has, so far, reached 12 people," he remarked in Cirebon, West Java, on Monday.
The accident, taking place at 1 a.m. local time, involved a bus, truck, and two vans.
Of the 12 reported deaths, six were passengers and a driver of an Expander van, three were seated in an Innova van, and three were travelling by bus, he revealed.
At least 11 people suffered grave injuries, while 34 incurred minor wounds in the multi-vehicle crash.
All victims were immediately moved to the Mitra Plumbon Hospital in Cirebon and Cideres Hospital in Majalengka, he added.