Malang, East Java. The East Java Provincial Disaster Mitigation Agency, or BPDB, has prepared 2,500 packages of basic necessities, including rice and oil, in anticipation of a potentially disastrous eruption of Mount Bromo.

Mount Bromo, standing at 2,329 meters above sea level, is some 50 kilometers east of Malang. The iconic volcano last erupted in January 2011.

The BPBD has also prepared 400 packages of pre-made meals and an additional 400 packages of snacks and other food. At least 25,000 masks will be provided by the agency in anticipation of high levels of sulfur in the air.

East Java BPBD head Sudarmawan addressed local media on Friday, saying that Bromo has shown increased eruptive activity and the area is now off-limits to the public. The agency has coordinated with local district heads around the area in anticipation of a potential devastating eruption.

Separately, East Java Deputy Governor Saifullah Yusuf has instructed all public officials to stay alert.

“We of course do not want the worst to happen, but, everything is ready, including the evacuation routes, refuges, and more,” he told Liputan6.com on Thursday.

Mount Bromo began to erupt again this year at the end of November and has worsened over the last six weeks — leading to the closure of Malang Abdul Rachman Saleh Airport on Thursday for an indefinite period.