A Glasgow hospital has recorded its worst week for accident and emergency department waiting times since opening in April last year, new figures show.

Almost one in four patients (24.1%) attending A&E at the Queen Elizabeth University Hospital had to wait longer than four hours to be admitted, transferred or discharged in the week ending December 11.

Health boards are expected to ensure 5% of patients or less are treated within four hours.

Earlier this month it was revealed health boards across Scotland had missed the target for the third month in a row.

During the week December 5 to December 11 in Scotland, 10.1% of patients were not being treated within the target time.

Scottish Labour health spokesman Anas Sarwar called on the health secretary to "get a grip" on the NHS.

He said: "A decade of SNP mismanagement is beginning to really hurt our health service. Shona Robison must get a grip of the growing NHS winter crisis in Scotland.

"These figures show that A&E performance across Scotland is getting worse. The fact that one quarter of A&E patients at the £850m Queen Elizabeth University Hospital aren't seen within four hours is unacceptable.

"These figures are yet more evidence that the SNP's decision to allow the closure of the minor injuries unit at Yorkhill Hospital is senseless, reckless and ultimately dangerous.

He continued: "Shona Robison needs to get her head out of the sand and sort the problems in our health service, which are getting worse on her watch."

Robison said demand in that particular week was "particularly challenging" for the NHS.

She said: "We are monitoring A&E performance closely to ensure no-one is waiting longer than absolutely necessary in our emergency departments.

"This week has been particularly challenging for some of our hospitals with demand increasing by over 5% compared to the same week last year - over 1200 more patients.

"This increase in demand has affected waiting times in some areas of the country, and we are working particularly closely with those health boards affected to identify and implement immediate solutions."