17 July 2016 08:59 am
Police said the injured were admitted to the Kimbissa and Dambulla Hospitals.
Ten Chinese nationals, one Indian and a Germen national were among the foreigners and the five Sri Lankans were residents of Mattakuliya.
Last week, 20 tourists inclduing 15 Chinese nationals, were also injured when they were attacked by wasps in Sigiriya.