BAYONNE, N.J. (CBSNewYork/AP) — Oil has spilled into the water after a tugboat struck a pier in Bayonne on Saturday night.

Coast Guard crews are monitoring the spill at the International-Matex Tank Terminal, which was reported around 10 p.m. Saturday. The terminal is about 10 miles south of Manhattan, near where the Kill van Kull meets Upper New York Harbor.

The Coast Guard’s pollution response team was sent to the site, while a helicopter crew from Air Station Atlantic City also responded but ran into mechanical problems before making an emergency landing on a Staten Island golf course.

It wasn’t clear Sunday how many gallons of oil have entered the water.

Coast Guard responders and terminal employees quickly launched a containment boom and secured the source of the oil. But boaters and the public were being urged to stay away from the site.

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