Tunisian Prime Minister Habib Essid has said the majority of the 38 people killed in the attack on a Tunisian beach resort were British .
Islamic State extremists have said they carried out the attack.
At least five Britons have been confirmed dead by the Foreign Office, which warned the death toll could rise reports BBC.
Thomson and First Choice said their customers were among “a number of fatalities”, and they had sent 10 planes to bring home 2,500 tourists.
The first began to arrive back in the UK on Saturday, with six flights due at Manchester this morning and two having arrived at Gatwick.
An emergency Cobra meeting chaired by the prime minister is due to take place later to look at the UK’s response to the attacks.
Tunisians, Britons, Germans, Belgians, French and at least one Irish citizen were among those killed when a gunman opened fire on tourists. Thirty-six others were wounded.