A TEENAGER has been arrested following the evacuation of a popular Paisley pub on Sunday night.

It comes as police rubbish claims the stench was caused by a stink bomb. 

Emergency services rushed to the town at around 9.30pm after reports of coughing and screaming in The Last Post. 

Much of the town centre was sealed off and train services to Paisley Gilmour Street were also affected. 

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Four people were rushed to the Royal Alexandra Hospital, where they were treated following the incident, but have since been released.

Now, officers have confirmed that a 16-year-old boy has been arrested in connection with the event that they say was started by a liquid spray. 

Chief Inspector Simon Wright, Divisional Commander for Paisley, condemned the incident that saw at least eight fire engines and specialist health support units rush to the scene. 

He told our sister title, The Gazette: "We attended an incident at around 9pm on Sunday after reports a substance had been discharged within The Last Post pub. 

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"There have been a number of reports that the substance was a stink bomb, but that is not correct. 

"It can best be described as an irritant and we are working to establish what exactly it was. 

"We can see from CCTV the irritant is a liquid and has been sprayed in the pub and this caused pain in the eyes and throat of those within the vicinity.

"We can confirm as 16-year-old boy has been arrested.

"This appears to have been an act of anti-social behaviour rather than a targeted attack.

"These were extremely unusual circumstances and forced us to cordon off much of County Square, which had an impact on the wider public.

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"People couldn't access the police station and train services were affected.

"We want to thank members of the public for their support and patience."

It had earlier been reported that the incident was caused by a stink bomb gone wrong amid initial fears of a gas leak. 

Scottish Fire and Rescue sent a number of incidents to the scene as the drama unfolded. 

A spokesman added: "Operations Control mobilised a number of fire engines to the town's County Square, where crews assisted their partners.

"Firefighters thereafter left the scene."

A report has been submitted to the procurator fiscal.