Regulated fares, which include season tickets and off-peak returns, will not see annual price rises for the first time in 30 years, the government announces.

But it is also possible electric vehicle owners could face a new tax elsewhere in Wednesday's Budget.

A former Bank of England chief economist says Budget speculation has "caused paralysis for businesses and consumers".

South African President Cyril Ramaphosa says there is a "renewed commitment to multilateral co-operation".