Rail passengers face disruption for most of the day after engineering works overran at London's Waterloo station.
Services to and from what is the UK's busiest station, will be delayed until at least 18:00 GMT, South Western Railway said.
Trains were unable to enter Waterloo until about 07:00 GMT, causing knock-on delays or cancellations.
All stations on the line have now reopened, National Rail said, but passengers have expressed their anger.
Hi, Trains are now able to run to and from London Waterloo. However during the closure, trains were unable to leave a number of depots and enter services. As a result of this, some services may be delayed by up to 60 minutes.— National Rail (@nationalrailenq) March 22, 2019
It added disruption was set to last at least until the afternoon and urged passengers to consider other transport options.
South Western Railway apologised to travellers.
"Services are being delayed due to over-running engineering work, sorry for the inconvenience this causes you this morning," a spokesperson said.
People have taken to social media to complain of their dismay.
No trains to or from London #Waterloo. Great, it's not like anyone has to be in London this morning or anything.— Delay Repay Sniper (@delayrepayagent) March 22, 2019
Is there *any* chance of trains leaving Hersham to go to London Waterloo this morning? 🤷♀️ @SW_Help I don’t especially want to spend my whole Friday sitting on the floor of a train platform...— ariel1986 (@ariel1986) March 22, 2019