Srinagar,  Three non-local labourers were injured in a grenade attack by militants in J&K's Shopian district on Friday, police said.

Police sources said that militants hurled a grenade at the Jawahar Navodaya Vidyalaya in Shopian where non-local labourers were engaged for some repair work.

"Three labourers were injured in this explosion. They have been shifted to hospital for treatment," a source said.

Further details are awaited.