Police have stopped and seized a van belonging to Glasgow City council construction giants City Building as part of a £200,000 drugs haul.

As part of a major operation, officers crashed in to the vehicle before detaining and then arresting its two occupants on suspicion of dealing.

They then stopped another vehicle, car, and detained then arrested its driver.

The operation, carried out with support from Glasgow City Council, which owns and runs City Building, was understood to focus on the distribution of amphetamines across north Glasgow.

Nobody was hurt in the crash - a bumper-to-bumper collision between the police car and the van came to a halt. The stop was made at 8pm on April 13 in Barmulloch, north Glasgow.

It is understood that there was no attempt to deliberately or tactically ram the van. Council sources said their vehicle had been damaged but not written off.

One of the men in the City Building van was Michael McKenna, 24, an electrician for the construction firm. He has since resigned his post, the Herald understands.

Mr McKenna's is the step-brother of the partner of Paul Carey, the Labour councillor who until late last year chaired City Building. There is no suggestion Mr Carey or his partner had any involvement in the incident or any of the matters under investigation. The councillor said: "I don't know anything about it."

A Police Scotland spokesman said: "On 13 April 2015 at around 2000 hours, as part of a police investigation, a vehicle was stopped on Sheila Street in Glasgow.

"The occupants were detained and taken to Stewart Street Police Office. At the same time, another vehicle was stopped on Springburn Road, the occupant was detained and taken to Stewart Street Police Office. "Detailed searches of the vehicles were conducted at Stewart Street where officers recovered quantities of cocaine, diamorphine and amphetamine with an estimated potential street value of £200,000.

"A 24 year-old, 31 year-old and 42 year-old man were later arrested for alleged drugs offences and held in custody for court."

A council spokesman said: "We are aware a City Building vehicle was involved in a police incident on 13 April. It would be inappropriate for us to comment further on ongoing legal proceedings."

The old Strathclyde Police, now Police Scotland, and Glasgow City Council pioneered protocols on information-sharing on organised crime.

Glasgow has the first police liaison officer of any Scottish local authority with officials acutely aware that their staff, assets and facilities were vulnerable to infiltration by gangland figures.

A city council spokesman added: "Any business can be a target for organised crime and public bodies are no different. We work closely with Police Scotland to identify and minimise risks and share information."