PASIR GUDANG, Oct. 29 -- The Department of Environment (DoE) is investigating Sungai Kim Kim here after receiving reports of a white cloudy effluent, triggering fears that pollution has returned.

The effluent, spotted near the bypass road between Taman Pasir Putih and Kota Masai here, is suspected of causing a foul odour reported since yesterday that has affected various areas around Johor Bahru and Pasir Gudang.

Johor Department of Environment (DoE) director Dr. Mohd Famey Yusoff said that the department has launched an investigation after receiving complaints about the incident.

"However, the river was found to have returned to normal and was no longer white or cloudy by the time DoE officers arrived at the scene to conduct an inspec...