A pilot scheme scrapping peak-time ScotRail fares is to be extended by the Scottish government for a further three months.
The scheme – which means fares are the same at all times of the day – has been running since last October.
It was initially due to last six months but was then extended until 28 June.
First Minister John Swinney will announce later it is to be extended for a further three-month period.
The introduction of the scheme saw the cost of a rush-hour ticket between Glasgow and Edinburgh being nearly halved, from £28.90 down to £14.90.
The government said the pilot project was aimed at boosting rail travel – which was down by 70% since the start of the Covid pandemic.