Oct. 20 (UPI) -- Police in Nigeria broke up several protests calling for a separatist leader who has been detained for more than four years to be freed and cleared of terrorism-related charges on which he has been held.

Protesters demanding the release of Nnamdi Kanu, who is the leader of the Indigenous People of Biafra (IPOB) separatist party, had tear gas fired at them by police in Abuja, Nigeria's capital, according to reports.

Witnesses said they saw police officers block major roads in Abuja and fire multiple rounds of tear gas at protesters who had gathered near the Transcorps Hilton Hotel in order to break up the protest.

Ahead of Monday's protest, Nigeria Police Force spokesperson Benjamin Hundeyin announced a nationwide security alert urging the protesters to avoid inciting violence, carrying weapons or engaging in other illegal acts.

Mass action for #FreeNnamdiKanuNow at Gudu area of Abuja pic.twitter.com/UepAb1rrRR— Omoyele Sowore (@YeleSowore) October 20, 2025