NHS Ayrshire and Arran is failing to meet the Scottish Government’s target for treating patients within four hours.
Figures released last week show the board is one of four in Scotland failing to meet an interim goal of seeing and treating 95% of patients within four hours of arriving at A&E.
Hospitals in the area are only seeing 93.6% of patients within the target time.
Liz Moore, Director of Acute Services at NHS Ayrshire and Arran expressed her regret.
She said: “NHS Ayrshire & Arran continues to experience high demand for emergency services and we very much regret that a number of patients have been delayed more than four hours in our emergency departments of both University Hospitals Ayr and Crosshouse.
“Our performance is continuing to improve towards meeting the target of 95 per cent of patients being treated, discharged or admitted within four hours.”
She added that a new assessment unit at Crosshouse was improving the situation.
Ms Moore went on: “We opened a new assessment unit at University Hospital Crosshouse on Monday, June 15 to support quicker review and treatment of patients who are referred to hospital by their family doctor (GPs). This is expected to reduce time for patients waiting in the Emergency Deptment for an inpatient bed.
“We apologise sincerely to patients who have experienced longer than normal waits in our emergency departments.”