The US government is asking that a legal challenge to the Atlantic Ocean's first-ever marine national monument be tossed out, WNPR reports.

Groups that include the Massachusetts Lobstermen's Association and others are suing to gain back roughly 5,000 square miles off the coast of Massachusetts designated a protected zone by the Obama Administration in 2016.

In a filing Monday, the Department of Justice asked a federal district court to dismiss the groups' lawsuit and said President Obama complied with the authority granted by the Antiquities Act.