Bosses of some of Britain’s top companies including BT, Marks & Spencer and Vodafone, have signed a letter published in the Times, warning that an exit from the European Union will threaten UK jobs and put the economy at risk. Chairmen and chief executives of 36 FTSE 100 companies have signed the letter, backing the “in” campaign.

They joined a total of 198 signatories from across the business world including the bosses of both Heathrow and Gatwick airport as well as two leaders of US firm Goldman Sachs’ European business. The referendum on whether to leave the EU or not will be held on June 23rd.