Nnamdi Kanu threatens fire and brimstone.

The self-exiled leader of the Indigenous People of Biafra (IPOB) says he has returned fully and is “coming back with hell.”

“I have returned full-time and I am coming home and I will bring hell with me,” Nnamdi Kanu said in his first public statement on a live broadcast on Radio Biafra which commenced 6 p.m. on Sunday.

The live broadcast, monitored on the ‘Radio Biafra’ Facebook page, comes two days after social media went agog over a video showing Mr Kanu praying in Israel 13 months after he disappeared with whereabouts unknown.

His lawyer, Ifeanyi Ejiofor, who had repeatedly accused the Nigerian Army for his client’s disappearance, confirmed the video, saying he had received a direct statement from Mr Kanu saying the video was not doctored.

One of Mr Kanu’s associates, Femi Fani-Kayode, a former aviation minister, also said on Saturday that he received a call from “my brother” (Kanu) and that they are working together to remove President Muhammadu Buhari come 2019.

“We have agreed to work together to VOTE Buhari out”, he tweeted on his handle @realFFK on Saturday.

Mr Kanu in Sunday’s broadcast, however, said his group is not interested in anything else other than for the government to set a date for a referendum.

“We will not relent till referendum is conducted. We stand for the truth. It’s referendum or nothing else,” he noted.

Mr Kanu has been at the vanguard of the call for an independent Biafra Republic from the Nigerian state through referendum.

The IPOB leader, who is facing charges of treasonable felony at the Federal High Court in Abuja, had called for a boycott of elections in Anambra last November if government failed to set a date for referendum.