SINGAPORE, Dec. 18 -- Travellers heading to Malaysia during the December holiday period have been warned to brace for longer waits at Singapore's land borders, as intensified checks against the smuggling of e-vaporisers continue at both the Woodlands and Tuas checkpoints.

Singapore's Immigration and Checkpoints Authority (ICA) said in a statement today that the stepped-up enforcement measures - aimed at preventing the illegal import of e-vaporisers, which are banned in Singapore - are expected to lengthen immigration clearance times, particularly during peak travel hours.

The warning comes after heavy traffic during the first week of the year-end school holidays, between November 21 and 27, when more than 3.6 million travellers crossed ...