The US Department of Justice has put in a request to detain supertanker Grace 1, which will be considered by Gibraltar’s attorney general.
The vessel, carrying Iranian oil, has been held off Gibraltar since 4 July.
It was set to be released within hours, after the attorney general indicated he would make no further order for its detention.
But, following a late US application, the matter has been adjourned until 16:00 BST.
Source: The Guardian