London: British Prime Minister Boris Johnson was on Sunday branded a 'spoilt brat' by the Opposition after he sent an unsigned letter seeking a three-month extension to the October 31 deadline from the European Union (EU).

The UK PM was bound by law to issue a letter seeking a delay to Brexit after MPs voted in a historic Super Saturday Parliament session to delay voting on his motion on a new Brexit deal. Johnson has previously said he would rather be 'dead in a ditch' than miss the October 31 deadline and had triggered speculation soon after the House of Commons vote by declaring that he would not negotiate an extension.