Imphal: Security forces in Manipur have stepped up operations across the state, cracking down on illegal activities along the India-Myanmar border and dismantling militant infrastructure in sensitive districts.

In one such operation, Manipur Police intercepted four vehicles heading towards Moreh in Tengnoupal district and seized 25 containers of petrol and diesel believed to be meant for smuggling into neighbouring Myanmar.

The drivers of the vehicles were arrested on the spot. Officials identified them as Elvis Lamkang (23), Md. Abas Khan (47), Dangsawa Koshil Pipachum (56), and Md. Mujibur Rahaman (35), all residents of Chandel, Thoubal and Kakching districts.

Police said the fuel was being transported illegally through the border route, which remains highly vulnerable due to its unfenced stretches.

Five districts in the state-Churachandpur, Tengnoupal, Chandel, Kamjong and Ukhrul-share a 398-km porous international boundary with Myanmar, often exploited for smuggling drugs, wildlife and other contraband into India.

In a parallel crackdown, security forces demolished 23 illegal bunkers spread across hill areas in Ukhrul district, including Mongkot Chepu, Shongphel, Mullam, Sirarakhong and Ringue villages.

The district has witnessed recurring violence since February, prompting intensified security action.

Officials said more than 150 such bunkers linked to militant groups and armed cadres have been destroyed in recent months across the state.

Authorities have continued search operations and area domination exercises in vulnerable and mixed-population zones, involving both central and state security agencies.

To monitor movement and prevent illegal activities, 114 checkpoints have been set up across hill and valley districts.