Police on Monday arrested four people from various parts of Siraha for possessing illegal substances.

According to the Siraha District Police Office, three of the accused were arrested from Kushmaha in Dhangadhimai Municipality-4 with a total of 92kg of marijuana.

The fourth accused was arrested from Kusundi in Nawarajpur Municipality-5 of the Siraha district. The 19-year-old Sindhuli resident was arrested for being in possession of 301 ampules each of Diazepam, Buprenorphine, and Phenergan.

The police have also seized a motorcycle with an Indian number plate.