A power transformer that serves the New Haven Line failed last night in what Gov. Ned Lamont is calling a major failure.

Metro-North said the line was experiencing delays "due to the loss of one of the two transformers at Sasco Creek substation in the vicinity of Green's Farms."

The issue delayed trains by as much as 30 minutes Friday near the Southport and Green's Farms stations. Lamont said trains were operating at 50 percent of their normal electrical powers.

Metro-North said it was substituting diesel service for some of its scheduled trains.

Repairs could take months, Lamont said. The governor said "failure is emblematic of why the state needs to take proactive steps to modernize Connecticut's aging infrastructure."

The transformer that failed was about 40 years old, Lamont said. He says tolls are the best way to raise money for the repairs

"We can't sit around and say, 'if it ain't broke, don't fix it.' We gotta get ahead of this," said Lamont.

According to an MTA tweet, issues began around 4 a.m. for customers on the New Haven Line.

DOT Commissioner Joe Giulietti says there will be personnel working 24-7 to get this fixed. He says if nothing gets done, the line will go from one potential disaster to another.