The Greek Coast Guard and a new government agency that is tasked with finding illegal revenue sources has stepped up a campaign against illegal yacht charters in Greece. reported that authorities are going after both domestic and foreign-registered vessels that carry out excursions in Greek waters.

The website said that a number of yacht charter vessels in Santorini were fined for under-reporting a charter in Greek waters. Five other charter boats were also inspected and fined. The businesses were shuttered by Greek authorities for 48 hours.

The Coast Guard also reported that two foreign-flagged yachts were fined for conducting charters that began and ended in Greek waters while the charters were packaged and paid for outside of Greece.