The Selangor government has activated urgent relief efforts in the wake of flooding and continuous heavy rainfall of up to 380mm, opening 46 temporary shelters for 3,542 displaced people as of 5pm today.

Selangor Menteri Besar Amirudin Shari said the total amount of rainfall recorded by the state Irrigation and Drainage Department was more than double the previous record of 180mm.

"Further, water levels in affected areas can reach...