There will be no trains running running from Edinburgh Waverley and a very limited number around Glasgow.
Onboard the 8.30pm Glasgow Central to Ayr train service on Thursday a woman was attacked by a group of four females.
Travellers have been warned of significant disruption to services for at least the next six Sundays.
ScotRail warned there will be significant disruption to services.
Transport secretary says Scottish Government will try its 'very best' to keep any cost increases to a minimum.
An arms-length company will be set up to run Scotland's trains from March 2022.
ScotRail said it was determined passengers couldn't use Covid as an excuse for not paying.
Scotrail said it was dealing with challenging weather conditions across its network on Tuesday.
The latest phase will bring the total investment to over £10m.
Company says the financial pressures of the pandemic has led to a reduction in the services they can offer from February.
Network Rail said the height and rural location made the repair a 'complex' job.
ScotRail confirmed the incident on Twitter at around 9am on Sunday morning.
The firm’s Customer Service Centre in Paisley has undergone a deep clean but will remain closed until Sunday.
The line, via Falkirk High, was closed after the Union Canal burst its banks on Wednesday, August 12.
Investigators are finding it difficult to access the site where three people were killed after a train derailed in Stonehaven.
ScotRail advises passengers to delay travel until further notice with severe disruption reported across the network.
The increase comes ahead of the anticipated reopening of schools in Scotland from August 11.
ScotRail said free masks would be available for a 'limited period' as face coverings made mandatory from Monday.
Scotrail said there would be significant changes to the look and feel of the station.
New figures continue to show an improved picture for train operator.