Nicaragua was ordered by the International Court of Justice (ICJ) on Friday to pay nearly $379,000 (€303,000) to Costa Rica for damaging parts of wetlands at the mouth of the disputed San Juan River.

Costa Rica had demanded $6.7 million for the environmental harm done to the wetlands, called Isla Portillos by Costa Rica and Harbor Head by Nicaragua, and to compensate its efforts to restore the area.

The order follows a 2015 ruling of the ICJ in which the court found Nicaragua had violated Costa Rica's sovereignty by establishing a military camp and digging channels near the river, part of a long-running dispute between the two Central American neighbors.

Read more: Costa Rica sues Nicaragua over land dispute

The two countries were told to agree on a sum of compensation within one year. But the neighbors failed to reach a deal, prompting ICJ to step in.

Long-running dispute

ICJ judges said on Friday that the clearing of hundreds of trees and almost two square miles of vegetation "significantly impacted the site."

Presiding Judge Abdulqawi Yusuf said Nicaragua must pay the $6.7 million by April 2, after which it will incur a higher rate of interest.

The two neighbors have been embroiled in a dispute over the border since an 1858 treaty, which states the San Juan River belonged to Nicaragua, but Costa Rica was given commercial access to the river. The treaty has since been reinterpreted many times.

On Friday, the ICJ is set to demarcate parts of the maritime and land borders between the two countries.

ap/sms (Reuters, AP, AFP)