Two oil tanker engineers from the Philippines pleaded guilty Tuesday to federal charges for dumping oily waste into the sea from a commercial vessel near a petroleum terminal in Sewaren, Middlesex County, U.S. Attorney Philip R. Sellinger and Assistant Attorney General Todd Kim announced.

A report from the Department of Justice says it happened over several months in 2022. The two engineers admitted to concealing the pollution and falsifying records.

Konstantinos Atsalis, 57, the chief engineer of an oil tanker, the M/T Kriti Ruby, pleaded guilty to an information charging him with two counts of violating the Act to Prevent Pollution from Ships, including falsifying the vessel's oil record book.

Sonny Bosito, 54, the second engineer of the M/T Kriti Ruby, pleaded guilty to an information charging him with violating the Act to Prevent Pollution from Ships.

Atsalis and Bosito each face up to six years in prison and a fine of at least $250,000. Their sentencing is set for Oct. 22.