A man has admitted killing a Thai pharmaceutical manager with a fire extinguisher at the Clyde Auditorium.

Clive Carter, who is is accused of murdering Khanokporn Satjawat in the women's toilets at the SECC complex on November 12 last year, was appearing today at a preliminary hearing at the High Court in Glasgow.

His QC Ian Duguid entered a guilty plea to the reduced charge of culpable homicide on his behalf, on the grounds of diminshed responsibility.

However prosecutor Murdoch MacTaggart told the court: "That plea is not acceptable to the Crown."

Judge Lord Turnbull fixed another hearing for August.

Mrs Satjawat, 42, died while attending a conference for HIV drug therapies at the Armadillo. Carter, of Motherwell, Lanarkshire, is believed to have been working as a security guard at the time.

Prosecutors allege Carter repeatedly struck Mrs Satjawat on the head and body with a fire extinguisher. The 35 year-old faces a further charge that he attempted to defeat the ends of justice to avoid arrest. It is claimed he cleaned blood and hair from the alleged murder weapon in a glass washing room within the venue.

Carter is also said to have hid a blazer he was wearing in a nearby portacabin. He is then alleged to have told a number of people - including police - that he had seen a man carrying a fire extinguisher and taken it from him on the floor where the female toilets were. It is claimed he knew those statements to be "false and untrue".

Carter is also charged with committing a breach of the peace by leaving a woman in "fear and alarm" at the Holiday Inn Express in Stockwell Street, Glasgow, on November 4. It is alleged that Carter knew the woman was alone, but claimed to be attending to a fire in her room despite knowing there was no blaze. He is said to have repeatedly knocked on the door and entered uninvited while holding a fire extinguisher.