Singapore is tightening enforcement against vaping on its public transport network, the Land Transport Authority (LTA) said on Monday. Station staff have begun active patrols, with offenders to be removed and reported to authorities. Police may also be called if individuals are found intoxicated, according to Xinhua.

Transport operator SMRT separately urged commuters to report vaping incidents. Vaping is banned in Singapore, and violators face fines of up to 2,000 Singapore dollars (about 1,559 US dollars).