A former British rapper and notorious "Islamic State of Iraq and Syria" (ISIS) suspect has been arrested in Spain, judicial sources said Wednesday (April 22nd).

Abdel Majed Abdel Bary, a former rapper from west London who once posted an image of himself holding a severed head on Twitter, has been arrested in the southern coastal city of Almería, the source said.

Police had on Tuesday announced the arrest of "one of the most wanted foreign terrorist fighters of ISIS", identifying him as an Egyptian national but without giving his name or saying exactly when he was detained.

Speaking to AFP, a Spanish judicial source confirmed it was Abdel Bary.

Police said the suspect "had recently entered Spain illegally and was found hiding in a rented flat" in Almería where several other people were also arrested.

"He is one of the most wanted terrorists in Europe on grounds of his criminal record within the ranks of ISIS and because he is extremely dangerous," a police statement said.

Before arriving in Spain, Abdel Bary spent "several years in conflict zones in Syria and Iraq", police said, describing him as presenting "some very strange personality traits and an extremely violent criminal profile which had brought him to the attention of Europe's police and intelligence services".

Born in London, Abdel Bary shot to notoriety after his Twitter post in which he could be seen holding up the severed head alongside the caption: "Chillin' with my homie, or what's left of him".

He is the son of Adel Abdel Bary, an Egyptian who in 2015 was sentenced to 25 years behind bars by a US court for his involvement in the 1998 bombings of the US embassies in Kenya and Tanzania, which killed 224 and wounded more than 5,000 others.