Theresa May is facing a Brexit backlash from Tory MPs over her "abject betrayal" of Britain's fishermen with rebels planning a fishing boat protest on the Thames.

Jacob Rees-Mogg, leader of a 60-strong group of Eurosceptic Conservative MPs, and others are due to board a boat tomorrow in protest.

Mr Rees-Mogg will board the boat and give a press conference before it casts off with other MPs to throw fish into the Thames in protest at the alleged “sellout” outside Parliament.

A Brexit transition deal agreed with Brussels allows the EU to maintain control of Britain’s territorial waters until the end of 2020, which protestors described as “a potential death sentence” for the British fishing fleet.

Ruth Davidson, the Scottish Conservatives leader, joined the growing rebellion as she warned Mrs May that the 13 Tory MPs north of the border will oppose any Brexit deal that “fails to deliver full control over fish stocks and vessel access”.