Thousands of tourists are fleeing Tunisia, after 39 people were shot dead at a beach hotel. <br /><br /> Tour companies are organising extra flights to get people home from the resort of Sousse.<br /><br /> Many of those killed in Friday’s attack, which has been claimed by the self-proclaimed Islamic State, were British. <br /><br /> A picture uploaded to social media purportedly shows the man who unleashed the horror at the Imperial Marhaba resort. <br /><br /> Dressed like a tourist, 24-year-old Saif Rezgui is said to have hidden a Kalashnikov in an umbrella, before opening fire on holidaymakers as they relaxed on the beach and by the pool. <br /><br /> It was the worst attack of its kind in Tunisia’s modern history.