DIPHU |  A grenade was allegedly hurled at an under-construction railway project along the Assam-Nagaland border in Karbi Anglong district, but the device failed to explode, averting any casualties or damage, officials said on Tuesday.

The incident took place on Monday afternoon at Rongaphar Siding in the Dhansiri area, where railway construction work is currently underway.

According to officials, the explosive device was thrown at the construction site but did not detonate. No workers were injured in the incident, and no damage to property or infrastructure was reported.

Police personnel were immediately deployed to the area following the incident, and a probe has been launched to ascertain the circumstances surrounding the attack.

Investigators are examining possible leads and efforts are underway to identify those involved in the incident.

Authorities have not yet indicated any motive behind the grenade attack. Security agencies are continuing their investigation, and additional surveillance measures have been put in place in the area as a precaution.

The incident has raised concerns over security along the sensitive Assam-Nagaland border region, where major infrastructure projects are currently being executed. However, officials said construction activities at the site have not been affected.