Christians Under Attack

And the pair pretended to machine-gun guardsmen outside their barracks near Buckingham Palace, it is alleged.

Sickened squaddies also claimed that the pair then SPAT.

Mohammed Abul Kahar, 23 and brother Abul Koyair, 20, are now being investigated over the claims — with CCTV footage from the area being checked.

Last night a Met Police spokeswoman said: “We are investigating an allegation of harassment outside Wellington Barracks at 10pm on August 1.

“There have been no arrests made so far.”

The alleged rant comes as British casualties mount in Iraq — where 115 of Our Boys have died. The three Welsh Guardsmen were on duty at Wellington Barracks, London, when the insults were hurled.

One Whitehall source said of the brothers: “The guardsmen knew exactly who they were because they pass by very often. There have been various incidents in the past but never this bad. The soldiers showed great restraint — and just showed them the steely eye.”

The brothers, who wear traditional Muslim dress, are staying at taxpayers’ expense at the luxury £260-a-night Crowne Plaza Hotel.

Scotland Yard has already spent more than £30,000 of public money on their hotel bills and living expenses since armed police stormed their East London home on June 2.

Kahar was shot in a scuffle with anti-terror officers looking for a chemical device, which was never found.

Cops agreed to place the family in luxury accommodation while their house is being repaired.

Kahar is being investigated over suspicion of possessing child porn after suspect images were allegedly found on a computer seized in the raid.

Neither the family or their lawyers were available for comment last night.

s.hughes@the-sun.co.uk