Honduras has detained five Syrian nationals traveling by land to the United States, and in possession of fake Greek passports.

The five men are currently being held in the Honduran capital of Tegucigalpa. The central American nation is over 1,500 miles from the United States border.

Police say there are no current signs that the men have ties to Friday's terrorist attacks in Paris, according to Reuters.

The men were coming from Costa Rica, and planning to make passage into Guatemala next.

Allies of the United States and France are on high alert for any and all suspicious activity following Friday's attacks. The issue of Syrian refugees has become hotly political, after France learned that one of the terrorists who attacked people in Paris entered France as a refugee.

A specific threat was made from Islamic State members against Washington, D.C., in an Internet video earlier in the week.