A House of Lords committee said it could leave UK businesses out-of-step with European counterparts.
Oxford West MP Layla Moran is currently second favourite in the party leadership race, although she has yet to confirm whether she is standing.
Despite Britain having now officially left the EU, Steve Bray has vowed to keep protesting outside Parliament until the UK rejoined.
The Irish premier said the UK should avoid putting down 'rigid red lines' early on in the Brexit trade talks.
The poster, pinned up in Winchester Tower in Norwich on Friday, tells people that speaking any language other than English won't be tolerated.
Geographically, a nondescript field in the Bavarian village of 80 people is now is the central point for the 27-member bloc.
There was a mixture of sorrow and euphoria on the front pages of Britain and Europe’s newspapers on Saturday as the national media reacted to Brexit finally getting over the line.
Yahoo UK spent the night in Parliament Square as Brexiteers told us: 'This is the day he’s been fighting for for decades.'
Leave Means Leave has asked for revellers to come in 'good voice to sing some patriotic songs and bring along as many Union flags as they can'.
The Brexit Party leader warned that the UK will not return to the EU after tonight.
A version of Beethoven's Ode to Joy, which is the organisational anthem of the EU, has taken the top spot in the iTunes UK singles chart ahead of Britain's departure from the bloc.