THE BRONX - The Federal Railroad Administration has released a letter saying that the Metro-North’s past seven months have been "simply unacceptable."

Over that time, four accidents have resulted in five deaths and nearly 130 injuries.

The letter urges the MTA to implement what's called a Confidential Close Call Reporting System, and to do so immediately. The new system would allow train engineers to report close calls, which in turn could identify precursors that lead to accidents.

Sen. Richard Blumenthal says the letter underscores the absence of strong safety protocol at the MTA, which he says the feds should have acknowledged months ago.

News 12 asked the state Department of Transportation for a response, but it deferred to the MTA. A representative for the MTA said the agency looks forward to working with the federal government to improve safety measures.