Business and labor leaders accused one another of putting a comprehensive immigration overhaul in the Senate at risk late Friday, as the two sides remained at an impasse over terms of a new visa program for foreign workers.

A bipartisan Senate group appeared unable to negotiate a compromise as the senators prepared to leave Washington for a two-week Easter break. The group has said it hopes to unveil a comprehensive reform bill that would include a path to citizenship for the nation’s 11 million illegal immigrants shortly after the Senate resumes work April 8.

But the U.S. Chamber of Commerce and the AFL-CIO remained at loggerheads over wages for foreigners who are granted visas for low-skilled jobs. Both sides agreed to a plan that would offer up to 200,000 visas to foreign workers in jobs where companies are unable to find enough Americans to do the work.