A new YouGov poll has found there to be growing support for Brexit with the referendum just weeks away, prompting wobbles on the UK stock market.

The poll adds to growing suggestions of a Leave lead, with online and telephone polls last week both showing a Brexit swing.

In a June survey of almost 3,500 people commissioned by Good Morning Britain, Yougov found 45 percent of those polled said they would vote to leave the EU, while 41 percent backed a vote to remain and 11 percent of voters were undecided.

This is a noteworthy swing from figures released in May, when only 40 percent backed Brexit and 42 per cent supported Remain.

Those who leave making up their minds until the end of the campaign will be crucial as will the turn-out figures on the day.

If the UK votes to leave the European Union, many worker’s rights, which are currently enshrined in European law, such as limits on the working day, will become void and will have to be re-legislated in a sovereign UK parliament, which could take time.