A signal problem and a mechanical problem with one train caused delays on the Montauk branch of the Long Island Rail Road late Friday morning, the railroad reported.

The eastbound 11:19 a.m. train from Babylon, due in Patchogue at 11:49 a.m. was canceled due to equipment trouble, and about 100 passengers on that train would be placed on the following train, spokeswoman Marjorie Anders said.

advertisement | advertise on newsday

Signal trouble caused delays on three westbound trains: the 10:05 a.m. from Speonk, the 11:24 a.m. from Patchogue and the 11:59 a.m. from Babylon, the spokeswoman said.

The railroad is operating on a holiday schedule for the Fourth of July.