Gov. Maura Healey issued an executive order Thursday activating up to 250 members of the National Guard to provide basic services at emergency shelter hotels that do not currently have a contracted service provider, according to multiple sources familiar with the situation.

The administration also plans to launch “Regional Rapid Response Teams” to help oversee shelter sites and serve as a direct contact to the Healey administration to address any concerns.

The mobilization comes weeks after Healey declared a state of emergency in Massachusetts because of an influx of migrants crowding the state’s emergency shelter system. The increase in new arrivals along with surging housing costs here has put a strain on the emergency shelter system.

Massachusetts is a right to shelter state, which guarantees shelter and subsistence for homeless families.

Sources told the Herald that Healey’s office started making calls informing local officials about the mobilization Thursday.

Mayor Michelle Wu’s office and City Council President Ed Flynn both got calls that there will be a National Guard presence Friday, according to multiple sources.

The state runs an emergency shelter site at the Marriott South Bay but officials said they will be evaluating which sites require Guard members and deploying them next week.