Peterborough based travel firm Thomas Cook is working with authorities after a terrorist attack which killed 27 in a Tunisian resort where it has holiday makers.
British tourists are feared to be among the 27 people killed in the terrorist attack in the town of Sousse.
One gunman was killed and another is being pursued by authorities.
Thomas Cook, which has holidaymakers in the resort, said: “Thomas Cook has been advised of an incident that occurred earlier today in Sousse, Tunisia.
“At this time, details are not clear as to which property(ies) have been affected, with conflicting news reports.
“We are currently gathering information and will provide an update as soon as possible. Our teams on the ground are offering every support to our customers and their families in the area.
“We will continue to monitor the situation, working closely with the FCO and local authorities.”
Tunisian interior ministry spokesman Ali Aroui described the victims as mostly tourists but did not give any nationalities, but local radio reports said those killed in the resort of Sousse were mostly German and British.
The atrocity, along with a terror attack in France in which a man was decapitated, prompted Prime Minister David Cameron to announce that the Government’s emergency Cobra committee would meet to discuss the situation.