Award-winning rapper Nicki Minaj has publicly backed President Donald Trump's allegations that Christians face persecution in Nigeria.

"In Nigeria, Christians are being targeted," Minaj said on Tuesday at an event organised by the US, adding: "Churches have been burned, families have been torn apart... simply because of how they pray."

It follows recent threats by Trump to send troops into Nigeria "guns a-blazing" if its government "continues to allow the killing of Christians".

Analysts say there is no evidence that Christians have been specifically targeted in Nigeria.

Jihadists and other armed groups have waged campaigns of violence that affect all communities in the West African nation, regardless of background or belief.