After more than three months of negotiations and 11 days on strike, over 30,000 Stop & Shop workers have reached a tentative agreement with the supermarket chain that they said met their demands for better pay and health care coverage.

The employees, members of the United Food and Commercial Workers International Union at more than 240 Stop & Shops across Connecticut, Massachusetts and Rhode Island, returned to work on Monday morning after reaching the deal on Sunday.

Details of the proposed three-year agreement will not be made public until the 31,000 union members across five locals ratify the contract. Voting will begin this week.

“The new contract does satisfy the different points of contention,” Jessica Raimundo, a union spokeswoman, said in an interview.