BALTIMORE (AP) — A union representing 2,000 environmental services and kitchen workers at Johns Hopkins Hospital is in negotiations with the medical institution over workers’ wages after Gov. Martin O’Malley stepped in to stop a planned four-day strike.

Talks between the union and the hospital resumed Tuesday after a previous round of negotiations stalled last week when the parties couldn’t agree on a $15 minimum wage for workers with at least 15 years of experience by 2015.

The workers, members of the SEIU1199 United Healthcare Workers East union, have been in negotiations with the hospital since March. They went on strike in April after the union rejected Hopkins’ offer of a $12 an hour minimum wage. Temporary workers covered shifts while the workers were on strike.

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