LONDON, June 21  -- About 40 people are being treated by medical personnel after a reported chemical leak at a holiday park swimming pool in east England, local media reported Sunday.

Emergency services were called to Wild Duck Holiday Park in Belton near Great Yarmouth in east England's Norfolk county at14:35 BST.

Police said the immediate area has been evacuated and a 20-meter cordon has been put in place around the building. Enditem