Thailand has expressed its "deepest sorrow" at death of Queen Elizabeth II and government offices will fly the national flag at half-mast for three working days as a mark of respect.

Their ancestors were "royal friends by correspondence" but Britain's Queen Elizabeth II and Thailand's His Majesty King Bhumibol the Great developed a face-to-face bond during their lifetimes.

Bangkok has raised its flood alert level with heavy rain expected to fall until Saturday, adding to a huge volume of run-off continuing to flow from upstream and high tide impeding flood water drainage.

The Finance Ministry is expected to ask the cabinet to extend the diesel excise tax reduction until the end of this year to ease people's living costs, according to a ministry source who requested anonymity.

Fifty-one Rohingya migrants rescued from being stranded in Satun have admitted they fled from a refugee camp in Bangladesh and Myanmar's Rakhine State in the hope of working in Indonesia.

The Constitutional Court has demanded to see the minutes of the Constitution Drafting Committee (CDC)'s 501st meeting which discussed Prime Minister Prayut Chan-o-cha's tenure, saying it will examine the case again next Wednesday.

The Move Forward Party (MFP)-led House committee on labour is proposing an amendment to the Labour Protection Act aimed at abolishing temporary and daily employment and upgrading the status of workers to help them make ends meet.

Former deputy prime minister Somkid Jatusripitak, who has officially been unveiled as chairman of the Sang Anakhot Thai Party, said he does not crave the role of prime minister, but rather wishes to work for the benefit of the country.

LONDON: Queen Elizabeth II, the longest-serving monarch in British history and an icon instantly recognisable to billions of people around the world, died on Thursday. She was 96.

Former deputy prime minister Somkid Jatusripitak has expressed his readiness to be a prime ministerial candidate of the new Sang Anakhot Thai Party (SATP) if the party nominates him in the next general election.