FOUR more cases of E.coli which could be linked to burgers sold at the SSE Hydro in Glasgow have surfaced, ­taking the total to 11.

The further four ­cases of E.coli O157 are being linked to food sold during the Top Gear live shows on the weekend of January 17, January 18 and January 19.

Health officials are investigating a period between January 17 and 25, which also included a performance by Scots band Del Amitri and an event as part of Celtic Connections.

The £125 million ­venue has a capacity of 12,000, meaning up to 84,000 people would have attended the ­Hydro in that period.

The 11 cases ­confirmed so far were in attendance at one of the five Top Gear shows held over the weekend of 17, 18 and 19 of ­January, NHS Greater Glasgow and Clyde (NHSGGC) confirmed.

Officials widened the time period under ­investigation to include the following weekend as a precaution, as E.coli can have an incubation period of up to 10 days. Those affected so far range in age from nine-years-old to 48.

Other food items are also being considered, despite the link to the burgers at the venue.

Dr Eleanor Anderson, consultant in Public Health Medicine with NHSGGC, said: "We are pleased all the cases are recovering at home.

"Investigations are ongoing and while there is no conclusive evidence our initial ­investigations have ­indicated that there may be a link to the consumption of burgers at the SSE Hydro.

"Glasgow City Council Environmental Health Officers are working closely with the vendors to ensure all appropriate food ­hygiene standards are being met.

"I would ask anyone who has attended the Hydro recently and who has experienced or is continuing to experience symptoms including stomach cramps, diarrhoea, nausea and fever to contact their GP."