Colombia on Tuesday lodged a protest at Nicaraguan plans to create a nature reserve that Bogota said included parts of its Caribbean territorial waters.
"The entry of Nicaraguan military into the Costa Rican territory constitutes a serious violation of the territorial integrity."
Nicaragua's arguments in the border dispute include a map of Costa Rica without the Nicoya peninsula, claiming that the maritime limits disputed before the ICJ should not take that territory into account.
Hearings from in the maritime border dispute will take place at the International Court of Justice at The Hague between July 3-13.
Nicaragua will have until June 2 to submit a response. Justices then will issue a final ruling on the damage compensation figure and on a deadline to make the payment.
Costa Rica asked the International Court of Justice to add a new complaint against Nicaragua to an ongoing case of a border dispute first filed in 2014.
The deadline for Costa Rica and Nicaragua to reach an agreement on the payment of compensation over environmental damage ruled by the International Court of Justice (ICJ) ended Friday without any signs of a settlement.
Daniel Ortega said that while his government is willing to compensate Costa Rica, it considers the $6.7 million requested by Costa Rica to be “exaggerated.”
The multi-million-dollar price tag on the damages to the wetlands near the Caribbean border of both countries comes after the International Court of Justice ruled in December 2015 that Nicaragua violated Costa Rica’s sovereignty when it dredged an artificial canal through Isla Calero, also known as Isla Portillos or Harbour Head Island.
Media outlets in Nicaragua on Wednesday reported about the International Court of Justice ruling mostly by citing Nicaraguan representative at The Hague Carlos Argüello, who avoided calling the justices' final rulings negative for his country and instead referred to them as “balanced.”