At least 15 people, including two pilgrims, were injured in a powerful grenade explosion near the main entrance to the Baltal base camp of the Amarnath pilgrimage in north Kashmir late on Tuesday.
Police said terrorists tossed a grenade, which exploded near the entry point to the Baltal camp, 102 kms from Srinagar, where several hundred pilgrims spent their night ahead of their departure for the Hindu cave shrine of Amarnath in the Himalayas.
"The injured were provided first aid at the base camp itself. However, attending doctors have referred three seriously injured persons to Srinagar for treatment," said a senior police officer in Srinagar.
He said the injured included nine Tibetan vendors, four local porters and two pilgrims.
Security forces guarding the camp immediately surrounded the spot and searches were mounted.
The security around the camp was further beefed up by the authorities. Most pilgrims going to the Amarnath cave shrine are using the Baltal trek this year.
Sources said the blast triggered panic, confusion and chaos in the camp where several hundred pilgrims were staying for the night.
The pilgrims begin their upward journey to the shrine early in the morning and return back to the Baltal camp late in the evening.
More than two dozen pilgrims were killed and 40 wounded in an attack on the south Kashmir Pahalgam base camp in 2000.