„The Grace 1 was detained last week in Gibraltar when it freely navigated into British Gibraltar territorial waters to a point two miles off the Eastside of Gibraltar, having previously exited the international waters of the Straits of Gibraltar, on a pre-arranged call for provisions and spare parts,“ the Gibraltar Government spokesman said.

The ship was „well inside BGTW“ when it was boarded and remains detained in that area, the spokesman added.
To illustrate that point, the Gibraltar Government issued a screen grab from the Port of Gibraltar‘s vessel traffic monitoring system taken on the night of detention.