Kaiser Permanente reached a tentative deal with the unions representing 75,000 employees, following the largest-ever health care strike in US history.

"The frontline healthcare workers of the Coalition of Kaiser Permanente Unions are excited to have reached a tentative agreement with Kaiser Permanente," the union coalition said on X. "We are thankful for the instrumental support of Acting US Labor Secretary Julie Su."

The strike last week lasted only three days, the length of time it had been scheduled to run. But the coalition of unions was threatening an eight-day strike next month with even more workers walking out if a new deal was not reached by October 31.

Details of the deal were not immediately available. The union had been seeking better pay and improved staffing levels at Kaiser hospitals and other facilities.

This is a developing story. It will be updated.