Jakarta, Dec. 3 -- The Indonesian government will investigate the factors behind recent floods in Sumatra, including the source of logs swept away by floodwaters in several locations, particularly in the Batang Toru River Basin.

Environment Minister Hanif Faisol Nurofiq told the House of Representatives (DPR) on Wednesday that law enforcement in land-use supervision would be part of the government's response to the floods and landslides.

He said the ministry had reviewed environmental documents, especially those in Batang Toru, North Sumatra.

"Starting Monday, all company executives identified through satellite-image analysis as contributing to the logs will be summoned to give explanations to the Deputy for Law Enforcement," he said....