Amtrak suspended Northeast Corridor service between New York and Boston on Saturday, citing an “ongoing electric power issue.”

The problem began around 9:20 a.m. Saturday, with delays between New York and Stamford, Connecticut. About 30 minutes later, Amtrak identified the problem as a malfunctioning circuit breaker causing power outages on the more than 70 miles of track between New York and New Haven, Connecticut.