It is not yet clear how the next Prime Minister will be chosen.

Liz Truss resigned after just 44 days without her party having a mechanism in place to replace her.

After Truss resigned, Sir Graham Brady, the chairman of the Conservative Party 1922 Committee, said there would be a contest.

While opposition leaders call for a General Election to decide the next Prime Minister, the Tory party is drawing up the rules for its latest leadership election, the fourth since the Brexit referendum in 2016.

READ MORE:Liz Truss resigns as Prime Minister after 44 days in office

The only definite is that it will be a short contest and the leader chosen by next Friday, October 28.

Brady said outside the House of Commons the “details” would be “clear later on”.

He added: “There will be some clarity later.”

He said they wanted to resolve the leadership issue “clearly and quickly”.

Brady also said he expected the party membership to be involved at some point.

READ MORE:'Utter shambles': Calls for a General Election grow after Liz Truss resigns as Prime Minister

After Boris Johnson resigned in the summer, it took 55 days to choose Truss as his successor.

She was chosen after 11 MPs put themselves forward and the other Tory MPs voted until two were remaining. Truss then defeated Rishi Sunak in a vote of the party membership, which was fewer than 150,000.

The House of Commons Library has detailed the rules for choosing a new Prime Minister

It states: “If a Prime Minister chooses to resign when their administration has an overall majority (as in 2022 – twice), it is for the party in Government (and their members) to identify who can be chosen as the successor.

“The Prime Minister only formally resigns and recommends a successor to the Monarch once this process is over.”