Italy's d'Amico Shipping Italia has been fined $4m after admitting oily waste dumping in the US.

US authorities said the company pleaded guilty on Wednesday in Newark to violating the Act to Prevent Pollution from Ships.

The charge involved the 40,000-dwt Cielo di Milano (built 2003) that called in New Jersey, Maryland and Florida a number of time in 2014 and 2015.