Indian authorities say at least 34 people have been wounded in four separate grenade attacks in the northeastern state of Assam.

Police said the attacks occurred nearly simultaneously late Thursday over various parts of the state. There has been no claim of responsibility.

The attacks came as India is considering a request by a powerful rebel group based in Assam to release some of its leaders before a third round of talks with the insurgents on June 22.

The United Liberation Front of Asom has been fighting for an independent homeland since 1979, and is one of several groups campaigning for that goal. Thousands of people have been killed in the separatist violence.

Some information for this report was provided by AFP, AP and Reuters.