The bus and train operator says the annual results 'fell short' of its ambitions.Read more
Shares in FirstGroup have tumbled more than 12% so far this morning.
Aberdeen-based FirstGroup, which has about 100,000 employees, operates the Great Western Railway and owns America's iconic Greyhound bus services.
Last month it emerged that private equity firm Apollo Management had approached FirstGroup about a possible takeover offer.
BBC Local Live
More than 160 schools have been forced to close, and there's disruption on many of Cornwall's roads as heavy snow and freezing temperatures take hold across much of the county.
The BBC has had several reports of people being stuck in cars, with conditions on the A394 between Longdowns and Rame described as particularly bad.
Drivers have also reported cars being stuck at Poldhu Cove, near Mullion.
Buses have also been affected, with First Kernow saying on social media that drivers have had to deal with "traffic at a standstill" and "treacherous" conditions in Falmouth and deciding to suspend routes leaving from Truro Bus Station.
It also had a bus stuck in the snow at Ruan Minor on the Lizard and suspended some services "beyond Helston".
It added that it "can no longer serve St Ives due to cars abandoned on the main road". St Ives-bound services are terminating at St Erth station.