An undercover police officer recorded British Muslim extremists calling for gay people to be thrown from 'high buildings', a court heard today.

Five men are accused of addressing or arranging meetings in support of the terror group at a church hall and the back garden of a home in Luton, Bedfordshire, last summer.

The first defendant, who cannot be named for legal reasons, allegedly told one gathering: 'We know that Islam is going to dominate all of this earth.'

On trial: Mohammed Sufiyan Choudry, 22, left, of Maidenhead, Berkshire, accused of encouraging support for ISIS. Right, Rajib Khan, 38, of Luton, Bedfordshire, accused of encouraging support for ISIS

He is one of four defendants who are said to have attended a meeting on June 27, 2015, in which a speaker criticised the annual Gay Pride parade in London, saying 'there's no pride in being gay'.

The speech was recorded by an undercover officer, referred to only as 'Kamal', who spent 20 months infiltrating the group and attending their meetings.

In a clip played to the Old Bailey, the speaker, identified only as 'Mohammed', said: 'When the parliament are making laws and having Gay Pride today in the UK, Gay Pride, where's the pride in being gay? There's no pride in being gay.'

He added: 'Alhamdullilah [praise be to God] the people haven't caught you, or it's high building for you.'

He continued: 'Brothers, there's no time to sleep in your chair, no time for relaxation, we should be asking for forgiveness from Allah every night. Oh Allah, forgive that we're living amongst these people and we're not completing our duty towards you.'

Accused: Yousaf Bashir, 36, of Luton

The meeting allegedly took place in a marquee erected in the back garden of a home in Luton.

'Mohammed' also called on the audience not to 'feel sorry' for the British tourists killed in the terrorist attack on a beach resort in Sousse, Tunisia, in June 2015; or the factory worker who was beheaded in Lyon, France, that same month, the court heard.

Another audio recording allegedly captured the first defendant telling the undercover officer about a clamp down on extremism.

Speaking as he left the Kokni mosque in Luton on July 3, 2015, he is said to have told the officer that parents could have their children taken into care if they said they 'do not agree' with homosexuals, as 'that's a sign they are becoming extreme'.

He added: 'You've got to be careful bruv. Can't live here any more. Hijrah [emigrate] bruv, time for hijrah.'

The Old Bailey also heard that the first defendant chose 'the Victory of Islam' as his topic for a speech at a meeting at St Margaret's Methodist Church hall in Luton on June 29.

He allegedly told his audience: 'We know the Khilafah [Caliphate] has been established, we are waiting for all the scenarios and one great thing that is going to happen, it’s going to be the last battle, this great battle which is going to take place between the believers and, obviously, the Christians.

He continued: 'Allah has promised victory for the believers… we know that Islam is going to dominate all of this earth.”

He added: 'Obviously we heard David Cameron say that the terrorists, they will never come here, Britain will succeed. They used to say in the past, the sun will never set on the British Empire, well the sun has set on the British Empire and the sun has started to rise for this Islamic State.'

Sean Larkin QC, prosecuting, told the jury ISIS had been proscribed by the Home Secretary a year earlier because it was 'probably the most notorious terrorist organisation currently in operation'.

Marquee in the back garden of a house in Luton, where meetings in support of ISIS allegedly took place

The first defendant is accused of addressing meetings in June and July last year at which he 'encouraged support for a proscribed organisation,' namely the Islamic State.

Some of the meetings were held in St Margaret's Church, Luton and others in a marquee behind a house in Luton.

Yousaf Bashir, 35, is charged with addressing a meeting on June 29, to encourage support for ISIS and Rajib Khan, 37, is accused of arranging, managing or assisting in the arranging of a meeting on July 11, and addressing the same meeting to encourage support for Islamic State.

The fourth defendant, who cannot be named for legal reasons, is said to have arranged three meetings in July, which he knew were to support Islamic State.

The fifth defendant, Mohammed Sufiyan Choudry, is accused of addressing a meeting on July 2, to encourage support for ISIS.