The affected products are manufactured by Pharmix Laboratories in Pakistan, the WHO said, and were first identified in the Maldives.

The medicines, liquids containing active ingredients to treat various conditions, contained unacceptable levels of the contaminant ethylene glycol, WHO said.

The alert is the latest in a line of warnings from WHO about similarly contaminated medicines made in India and Indonesia, which were linked to the deaths of around 300 children worldwide last year.

Read: WHO says Pakistani company making contaminated medicine

No adverse events have been reported to the WHO regarding the Pakistan-made syrups, the agency’s statement said.