Two people were injured in an overnight grenade explosion in Assam, the latest in a string of bombings and shootouts blamed on the outlawed United Liberation Front of Asom (ULFA), officials said on Tuesday.
A police spokesperson said militants riding a motorcycle late on Monday lobbed a grenade outside a petrol pump on a highway near Changsari, about 35 kms west of Guwahati.
"Two people waiting near the edge of the petrol pump were injured in the attack," a police official said. They were immediately admitted to the hospital.
Monday night's attack was the seventh explosion in the last one week in which nine people were killed and 42 injured.
The bombings were preceded by a string of raids from Jan 5 to Jan 8 in eastern Assam with separatist guerrillas killing 73 people, 61 of them being poor Hindi-speaking migrant workers.
Authorities have blamed the ULFA for the attacks. But the ULFA has denied its involvement in the recent violence. The attacks followed threats by the ULFA asking the migrant workers, most of them from Bihar, to quit Assam on the ground that they were taking away local jobs.
"The modus operandi of all the attacks point towards the ULFA," said Khagen Sharma, Assam's police intelligence chief.
Meanwhile, Australia, Britain and the US have issued advisories asking its nationals to review travel plans to Assam in the wake of the recent violence.
"This warden message is issued to alert US citizens travelling to and residing in northeastern India, and especially Assam, of the serious security threat due to a series of recent killings and bomb attacks," said an alert posted on the website of the US Consulate General Calcutta (Kolkata).
Similar alerts have also been issued by Australia and Britain.