Four arrested in CT investigation released from custody
The police investigation remains active
The police investigation remains active
The 21-year-old remains in police custody
The man, who is an Iranian national, was arrested and detained under section 27 of the National Security Act 2023.
The man was arrested on suspicion of murder on Thursday, 8 May.
The men were arrested and detained under section 27 of the National Security Act 2023.
The men were arrested at addresses in Swindon, London and the Greater Manchester area.
Three people were found injured inside the property.
A man has been arrested following a fatal stabbing.
Officers are appealing to those who may have seen Michael O'Donnell.
A 54-year-old man has been arrested on suspicion of murder.
Six people have been arrested following the murder of a 21-year-old.
The investigation relates to Hezbollah, a proscribed organisation under UK counter terrorism legislation.