Nigerian security forces are carrying out extrajudicial killings in Oyigbo, say residents of the town in southern Rivers state.
They accuse the army of carrying out revenge killings after authorities said three policemen and six soldiers were killed by members of a proscribed separatist group.
Amnesty International also said it had received reports that “soldiers are allegedly invading homes” and that “some residents reported seeing dead bodies on the street, allegedly shot by soldiers”.
Monday Bakor, 36, told BBC Igbo that police officers shot dead his fiancée Queen Nwazuo on 22 October while they were both locking up their barbing salon.
“I saw the policeman wearing [a] red beret. Before I could know, I heard a very loud sound, not in the air, directly at the shop. The bullet pierced through the iron door and hit her,” he said.
“I rushed her to a hospital where she was confirmed dead,” he added.
Police spokesman Nnamdi Omoni told the BBC that no report had been made of the incident.
Mr Bakor said he could not do this because of a 24-hour curfew in the area and pointed out the closest police stations had been burnt down.
What is the trouble about?
Authorities say members of the Indigenous People of Biafra – Ipob, proscribed as a terrorist organisation in 2017 by Nigeria’s federal government – targeted security operatives in Oyigbo as tensions spilled over following the #EndSars protests against police brutality in the country.
Ipob is seeking independence for Igbo-speaking parts of south-eastern Nigeria. A civil war in the area from 1967-70 caused the deaths of about a million people.
Oyigbo is a known Ipob stronghold.
Two police stations and a hospital in the area were burned on 21 October as widespread mayhem erupted after protesters against police brutality wereshot at the Lekki toll gate in Lagos.
Encouraged by their leader Nnamdi Kanu, Ipob members are accused of attacking security operatives in eastern Nigeria.
Clashes with the army in Abia state spilled over into the neighbouring Oyigbo town in Rivers state
Ipob activists are accused of burning down three police stations in the area and killing three policemen, after one of them was killed during a protest at a police station in Oyigbo.
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