Guwahati, Aug 14 - Security forces seized a huge haul of arms and explosives, including 45 kg of RDX, from separate raids in Assam Friday as an alert was sounded across the state ahead of Independence Day.

A police spokesperson said security forces stumbled upon a large cache of weapons and explosives in eastern Assam's Sadiya town, about 600 km east of the state's main city Guwahati.

'About 45 kg of RDX, 10 detonators, besides pistols and fuse wires, were recovered in an early morning raid,' a senior police official said.

Police suspect the explosives were being stocked by militants of the outlawed United Liberation Front of Asom (ULFA) to carry out strikes in the area.

In another raid Thursday, police recovered five bombs from a house on the outskirts of Guwahati.

'There are definite reports of militants desperately trying to stage violent attacks ahead of Independence Day and we believe these explosives were part of their plan to attack here,' the official said.

Meanwhile, a massive security alert was sounded across Assam with police, paramilitary, and army soldiers deployed in vulnerable areas like oil installations, road and rail bridges, besides crowded marketplaces.