Bogor, W Java, Sept. 19 -- Bogor district officials in West Java have identified 23 companies suspected of discharging wastewater that violates regulations into the Cileungsi River, following an investigation of about 176 companies.

Bogor District Head Rudy Susmanto said the investigation lasted several weeks after residents reported repeated pollution in the river.

"Of the 176 companies, about 23 were identified, including multinational and national firms, with oversight falling under both central and Bogor district authorities," Rudy said here Saturday.

He said the investigation team had collected evidence, including photographs, videos, and water samples from several drainage outlets leading into the Cileungsi River.

Rudy said test...