The State Security Service, SSS, has detained four leaders of Coalition of Northern Groups, CNG, who are planning to stage protests over insecurity in the North.
The region is battling with Boko Haram in the North East and banditry and kidnapping in the North West and North Central.
There is ongoing widespread protests across the country to bring an end to police brutality and proscription of a notorious police unit, SARS.
In a statement sent to DAILY NIGERIAN on Saturday morning, the spokesman for CNG, Abdul-Azeez Suleiman, said the secret police is determined to suppress the voice of Northerners.
“#EndInsecurityNow protests against the rampant killings in northern Nigeria and displacement of hundreds of communities has come under intense pressure and intimidation in the last few hours by the DSS which is hell bent on suppressing the tearful voice of the northerner.
“The development saw officials of the CNG Nastura Ashir Sharif, Balarabe Rufai, Aminu Adam and Dr Muhammad Nawaila being invited by the DSS in Kano where they were held from 11pm Friday to 2.15am Saturday.
“Throughout their stay at the DSS office, they were incommunicado not answering calls on their phones and not returning same. We are on the alert,” he said in the statement.