New Delhi (Sputnik) — According to emerging reports, the blast took place in a Punjab Roadways bus which was stationed at a Jammu bus stand at 11:45 am (Indian Standard Time). M K Sinha, a senior police official, said 18 passengers were injured in the grenade blast.
"They were shifted to GMC&H Jammu for treatment," said Sinha, adding that the condition of some passengers was serious," he said.
Jammu and Kashmir has been on high alert since 14 February, when a suicide bomber from the Pakistan-based Jaish-e-Mohammed (JeM) terror group detonated his vehicle in front of a convoy of security personnel, killing over 40 soldiers. In retaliation, the Indian Air Force (IAF) conducted a "non-military" air strike against an apparent terrorist camp in Balakot inside Pakistan on 26 February.
The following day Islamabad announced it had shot down two Indian warplanes over the Kashmir border and captured Indian pilot Abhinandan Varthaman, who was released a few days later.