Egyptian seaports have turned into important stations for cargo and cement ships transporting goods to and from Israel during the Gaza war period, according to an open source investigation.

The investigation, published Thursday by Arabi Post, tracked the activity of 19 ships over the past three months, using open source maritime data to trace the sea routes of these ships, which were limited to travelling back and forth between Israeli and Egyptian ports.

During the same period, no ships from Arab countries other than Egypt arrived at Israeli ports, the online news outlet reported.