Two suspected extremists linked to the Manchester Arena bomber's jihadi network will face trial in Denmark after British intelligence helped secure charges.

Ahmed Halane, 24 - the brother of teenage 'terror twins' Zahra and Salma, who left the UK to join ISIS in 2014 - is alleged to have joined Al-Shabaab in Somalia.

Finnish national Nur Hassan, also 24, is accused of going to Syria to join ISIS with his wife in 2013 after fleeing Manchester. He returned two years later, when he was refused entry to the UK.

Ahmed Halane is alleged to have joined Al-Shabaab in Somalia and is the brother of teenage 'terror twins' Zahra and Salma

Both were close friends with a jihadi network associated with Salman Abedi, including terror recruiter Raphel Hostey and Raymond Matimba, according to The Sun.

British spies helped bring charges against Hassan and Halane after they settled in Denmark, where their trials will take place.

Hassan, who was previously believed to have died in Syria, is charged with joining ISIS in Syria between 2013 and 2015.

His Cambridge-educated wife Iimaan Ismail, a teacher, was allowed back into the UK after reportedly going to Syria with him and is now living with family in Gorton, Manchester.

When approached at her home, her mother said she had not spoken to Hassan lately.

'She hasn't spoken to him recently. He's abroad - she doesn't have any contact with him,' she said.

Hassan's stepmother, Fatima Ali, said Ismail claimed to have gone to Syria to learn Arabic.

Salma, left, and Zahra, right, fled Manchester to join Islamic State in 2014. Now their brother faces terror charges in Denmark

Salman Abedi killed 22 people at the Manchester Arena bombing in May, which injured 250 people

'I saw Ismail about a month ago. She knows Nur has been arrested in Denmark,' she said.

'Nur has been arrested in Denmark in the last few months over terrorism.'

The charges secured by British intelligence come after MI5 head Andrew Parker said the UK was facing its worst ever terror threat earlier this month, when he reported 20 plots have been thwarted since 2013.

Raymond Matimba was identified as one of the so-called Beatles, who were Britons who fled to Syria to join Islamic State

Twelve arrests across Europe in the last four years are thought to include those of Hassan and Halane, who are in custody in Denmark.

Halane won competitions for his Koran recitals before arriving in Somalia.

Islamic State recruiter Hostey is thought to have helped hundreds travel to Syria.

Hostey prayed at the same Didsbury mosque as Abedi. He was previously thought to have died in a drone strike in Syria.