Activists of the Popular Front of India (PFI) on Thursday staged protests across Kerala against the raids carried out in their organisation's offices, houses of leaders and other premises by multi-agencies led by the National Investigation Agency (NIA) for allegedly supporting terror activities in the country.

As news of the early morning searches broke out, PFI workers took out marches to the places where the raids were carried out and raised slogans against the Centre and its investigating agencies.

However, central forces were already deployed in all such places as part of strengthening the security.

A PFI source here said protests marches were carried out in almost all districts including Thiruvananthapuram, Kollam, Kottayam, Ernakulam and Thrissur.

"The searches were mainly carried out in the offices of the state and district committees and the houses of its office-bearers. Though initially we thought the searches were conducted by the Enforcement Directorate, it has become clear later that it was by the NIA," the source told PTI.

As many as 14 office-bearers of the PFI, including national, state and district leaders, were taken into custody from the state by the central agencies, the source said.

PFI state president C P Mohammed Basheer, national chairman O M A Salam, national secretary Nasaruddin Elamaram and others were among those in custody, the source added.

Local media reported that all the leaders and workers, who were taken into custody from various parts of the state, would be brought to the NIA office in Kochi.

Senior leader Abdul Sathar alleged in Kozhikode the country-wide raids at the premises of the PFI were the latest example of the state-sponsored terrorism under the BJP-led union government.

The house of a Thrissur-based leader of the Social Democratic Party of India (SDPI) was also raided, the outfit's state president Ashraf Maulavi said.

Addressing a press conference here, he said those who believe and act in accordance with the Constitution of the country should expect any such fascist move against them in the RSS-ruled India.

"Through such deeds, the Centre is actually indulging in anti-constitutional activities. The public society should raise its voice against such practices to protect the country," he said.

He said the central investigating agencies were trying to create a smoke screen against the outfits which have been functioning in a democratic manner and legal steps would be taken against such acts after consulting with the national leadership.

The leader also claimed that those documents, reportedly seized during the raids, were only public relations stuff used by the outfits for its campaign.