Health Secretary Jeane Freeman addressed concerns over a Covid-19 outbreak at Home Farm care home in Portree on the Isle of Skye, where several residents have now died.
Ms Freeman said the Care Inspectorate had carried out an unannounced inspection of the home on Tuesday.
Following the visit, NHS Highland had agreed with owners HC-One to "provide enhanced assistance by deploying additional NHS resources, including social care management, nursing leadership and direct care".
Ms Freeman said: "This additional support has come into effect immediately with the aim of improving and sustaining the right quality of care for the residents.
"I and the Scottish Government strongly support action to ensure that all care homes provide a safe home for their residents.
"We have in Scotland a robust inspection regime for our care sector. That is why the health board and HC-One have been able to agree these interim arrangements very quickly following the inspection on Tuesday."
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