They were identified as S.V.E. Siriyawathie, 65, of Medakoratuwa Devinuwara, Hewage Chandrasena, 64, of Tittakatupahana, Kamburupitiya and Kithsiri Fernando, 50, of Moratuwa.
One of them had died near the Makara Thorana and the other two fell ill at Gangulatenna and Nallathanniya died on the way as they were being taken to Maskeliya Hospital.
Maskeliya Hospital JMO, Dr. R.M.LLiyadipitiya who held the post-mortem examination reported that the deaths were caused due to heart failure.
The inquirer into sudden deaths, Narasinghe Perumal recorded a verdict of death due to natural causes.