About 70 cargo containers fell off of a giant containership on Saturday night, February 3, about 17 miles off Oregon Inlet, North Carolina.

The Liberia-flagged Maersk Shanghai, featuring 10,081 TEU, informed the watchstanders at Sector North Carolina’s command center that they lost approximately 70 to 73 cargo containers due to high winds and heavy seas, the U.S. Coast Guard informed.

The incident occurred as a fierce nor’easter stretching from Maine to North Carolina pummeled the East Coast over the weekend producing harsh winds and waves of up to 40 feet (12 meters).

The Coast Guard added that the containers pose navigation hazards, urging all mariners to transit this area with caution.

The Post-Panamax boxship was underway from Norfolk to Charleston when the incident occurred, the ship’s AIS data shows. The 2016-built ship is operated by Zodiac Maritime, which charters out its ships to container shipping majors.

The ship is employed on 2M + HMM’s route between East Asia and the U.S. East Coast.