Updated

An “improvised explosive device” was found in an abandoned suitcase inside a busy Port Authority Bus Terminal eatery — and was later detonated by police, prosecutors said Thursday.

Police arrested Jersey City resident Arsenio Mason, 39, hours after he allegedly planted the device in the terminal Wednesday evening.

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Port Authority officers first noticed the luggage around 5:15 p.m. on the first floor of the terminal’s south wing inside Deli Plus.

A PAPD K-9 unit inspected the suitcase and brought it to a police substation within the bus terminal, sources said.

When officers opened the bag, they saw what appeared to be an improvised explosive device along with a knife, bolt cutters and screwdrivers, police sources added.

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