At least 15 people have been killed after heavy rain caused a landslide in Kerala's Idukki district early this morning, Chief Minister Pinarayi Vijayan said Friday evening. Fifteen others have been rescued so far and are undergoing treatment at the Tata General Hospital in Munnar. Cost of treatment will be borne by the state, the Chief Minister said, announcing ₹ 5 lakh as compensation for the families of those killed.