Bridge collapses onto rail tracks in the UK
East Midlands Trains said Network Rail teams had been working through the night to remove the debris and make the area safe.
Meanwhile, Network Rail, which has apologised for the disruption, said a full investigation is under way into what caused the bridge to collapse.
Yesterday people travelling by train from Derby to London were being advised to travel via Birmingham to London Euston.
“A full investigation will take place into the cause of the collapse, but our priority today is to return rail services as soon as possible although disruption is likely to last all day”.
A reduced service was in effect from first thing this morning after engineers were able to reopen two of the four lines under the bridge on Grove Lane during Tuesday, while the remaining two lines were reopened to trains this morning with a speed restriction.
All trains will run directly between stations on the London St Pancras/Nottingham/Sheffield routes.
Passengers have been warned their journey time could increase by up to 90 minutes.
East Midlands Trains managing director Jake Kelly said: “The work carried out by Network Rail yesterday and overnight means that we are able to run a near-normal service again today”.
Network Rail said it is investigating the cause of the collapse.
If you are travelling to/from Loughborough, a replacement bus will run between East Midlands Parkway and Leicester for onward connections to trains.
There are four lines that pass under the bridge – two that serve the local Leicester to Loughborough service and two that serve the faster London to Sheffield services.