Thousands of nurses at NewYork-Presbyterian could return to work next week after their union and the hospital system reached a tentative agreement to end a month-and-a-half-long strike, both sides said early Friday morning.

The New York State Nurses Association said about 4,200 of its members reached the deal following what it described as a historic strike. Union members will vote on whether to ratify the contracts this weekend. If approved, nurses would return to work next week.

The tentative agreement includes improved enforceable safe staffing standards, an increase in the number of nurses, protections against workplace violence and safeguards against artificial intelligence, according to the union.

The deal also protects health benefits and increases salaries by more than 12% over the life of the three-year contract.

“For a month and a half, through some of the harshest weather this city has seen in years, nurses at NYP showed this city that they won’t make any compromises to patient care. They stood in the cold, snow, ice and wind, along with their union siblings, fighting back management’s attempts to cut corners on care and secured contracts that improve enforceable safe staffing ratios, improve protections from workplace violence, and maintain health benefits with no additional out-of-pocket costs for frontline nurses. The wins of our private sector nurses will improve care for patients, and their perseverance and endurance have shown people worldwide the power of NYSNA nurses,” said NYSNA president Nancy Hagans.

In a statement early Friday, NewYork-Presbyterian said: “We are pleased to have reached a tentative settlement with NYSNA, through the mediator, that reflects our tremendous respect for our nurses”

Nurses at NewYork-Presbyterian began striking Jan. 12, alongside nurses at Montefiore, Mount Sinai Hospital, Mount Sinai Morningside and Mount Sinai West, who ratified their own three-year contracts and returned to work earlier this month.