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One of the three people arrested in Ealing on suspicion of terrorism offences has been released.

A 30-year-old woman who had been questioned by officers since Thursday (5th July) was released without charge on Saturday, 7 July.

The other six people remain in custody at a south-east London police station.

Officers from the MPS Counter Terrorism Command have now arrested seven people in connection with an ongoing investigation.

One has been named as Richard Dart. He was detained on an Ealing street. The 29 year old white Muslim convert had appeared last year in a video using the name Salahuddin Al Britani vowing to disrupt the wedding of Prince William and Kate Middleton.

Dart appeared on a Channel 4 documentary 'My Brother The Islamist' in which he criticised the UK and claimed to be living rent free. He is reported to have previously worked as a security guard at the BBC.

It is understood the arrests relate to a possible plot involving Islamist extremists, with potential UK targets.

In total 7 people have been arrested including a 21-year-old man and a 30-year-old woman - who has now been released - they were detained at separate addresses in Ealing. Exact locations haven't been released.

Three other men, aged 18, 24 and 26, were detained in Newham, east London, during the operation by armed police. One of them is reported to have served as a Police Community Support Officer.

The 24-year-old man was tasered during his arrest but was not taken for hospital treatment.

A 22 year women was arrested in Hackney yesterday (Saturday 7th July)

Security sources are describing the arrests as "significant." Some - if not all - of those arrested on suspicion of the commission, preparation or instigation of acts of terrorism are British nationals, the BBC says.

The arrests are not linked to the Olympics or Paralympics, police added.

8 July 2012