KUALA LUMPUR, March 27 -- A coalition of trade unions is demanding that the government legally recognize extreme heat as a deadly occupational hazard and enforce mandatory work stoppages during severe heatwaves, arguing that current voluntary guidelines leave millions of outdoor workers unprotected.

The Building and Woodworkers' International - Malaysia Liaison Council (BWI-MLC) issued the call today amid a prolonged heatwave in the country, with temperatures hitting 40degC in some northern states.

The Ministry of Health has already reported 15 cases of heat-related illnesses this year.

In a statement, the coalition argued that while the public is advised to stay indoors, this is not an option for workers in sectors like construction, ...