Listen: Journalist describes the scenepublished at 09:32 Greenwich Mean Time 9 February 2016
Local journalist Gulian von Lovvis spoke to us about what he had witnessed at the crash scene
'I fear German train crash deaths will rise'
Summary
Two passenger trains collide in Bad Aibling, south-east of Munich on 9 February 2016
Nine people are killed in the crash, with at least 100 injured
The crash happened in a wooded area alongside a river creating a difficult rescue operation for the emergency services
Listen: Journalist describes the scenepublished at 09:32 Greenwich Mean Time 9 February 2016
Media caption, Updated map of crash regionpublished at 09:20 Greenwich Mean Time 9 February 2016
Here's an updated map showing the location of the crash. Regional train company Meridian said in a statement that the "tragic accident" had occurred on a single-track route between Rosenheim and Holzkirchen, close to the Austrian border.
All trains halted in crash areapublished at 09:15 Greenwich Mean Time 9 February 2016
No trains are running on the affected railway line until further notice, German police say
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End of X postEmergency phone line - correctionpublished at 09:08 Greenwich Mean Time 9 February 2016
We reported that an emergency phone line for worried relatives had been set up by German authorities - when in fact it has been set up by the Meridian train operator.
The number again: +49 395 43084390.
Trains 'emptier than usual'published at 09:06 Greenwich Mean Time 9 February 2016
Bavarian schools are currently closed for carnival season - if not for this, the trains would have been full of school students, say German media.
Michael Kuhn from Bayerischer Rundfunk says he often travels on the same route, and the trains’ corridors are usually thronged with children.
Rescue workers surround the crash scenepublished at 09:04 Greenwich Mean Time 9 February 2016
Image source, EPA
Image source, AFP
Image source, ReutersRail firm confirms 'tragic accident'published at 09:00 Greenwich Mean Time 9 February 2016
Both trains were from a private firm called Meridian, which runs many countryside commuter trains.
In a statement, it was quoted as saying that "a tragic accident occurred on the single-track route between Rosenheim and Holzkirchen this morning shortly after 7:00 am (0600 GMT)".
Latest police casualty figurespublished at 08:52 Greenwich Mean Time 9 February 2016
German police have tweeted updated casualty figures: four dead, 15 very seriously injured, 40 badly injured, with a total of about 100 injured.
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End of X post'Biggest accident for years in this region'published at 08:50 Greenwich Mean Time 9 February 2016
Image source, AP"This is the biggest accident we have had in years in this region and we have many emergency doctors, ambulances and helicopters on the scene," police spokesman Stefan Sonntag told the Associated Press news agency.
Map of crash regionpublished at 08:48 Greenwich Mean Time 9 February 2016
The collision took place at Bad Aibling, close to the Austrian border in southern Germany
Injured passengers airlifted to hospitalpublished at 08:45 Greenwich Mean Time 9 February 2016
The badly injured are being flown to a clinic for treatment some 30 minutes away, German media says.
Crash summary: What we know so farpublished at 08:44 Greenwich Mean Time 9 February 2016
Four are reported dead in the collision which happened just before 07:00 (06:00 GMT) at Bad Aibling.
Emergency services have converged on the scene and are trying to free those still trapped in the wreckage.
No journalists are being allowed close to the trains, and roads in and around Bad Aibling are closed.
The train line between Holzkirchen and Rosenheim is also closed - by our estimate with the help of Google Maps, roughly 40km or 25 miles of track.
The cause of the crash is not yet known.
'So many ambulances'published at 08:35 Greenwich Mean Time 9 February 2016
Image source, Reuters“Never in my life have I seen so many ambulances at once,” says local radio reporter Dagmar Bohrer-Glas.
The station, Bayerischer Rundfunk, is reporting (in German), external that there are dozens of vehicles and helicopters at the scene in Bad Aibling.
Four dead police saypublished at 08:34 Greenwich Mean Time 9 February 2016
Police have found four dead at the crash site, Reuters news agency reports. Among the 150 injured, 10 are thought to be in a very serious condition.
Emergency phone line set uppublished at 08:29 Greenwich Mean Time 9 February 2016
The German authorities have set up an information line for those worried about loved ones – +49 395 43084390.
German justice minister thanks rescue workerspublished at 08:24 Greenwich Mean Time 9 February 2016
Heiko Mass tweets...
"Really awful news from #badaibling – our thoughts are with the victims and injured. Thanks to the rescue workers."
Ten people 'seriously hurt'published at 08:21 Greenwich Mean Time 9 February 2016
The main Bavarian newspaper, the Sueddeutsche Zeitung, is quoting police at the scene, external as saying 90 people are lightly injured, but 10 are seriously injured.
German train crash: live page updatespublished at 08:18
Welcome to the BBC News live coverage of a train crash in southern Germany.
We'll bring you all the latest coverage of the rush-hour passenger train collision.
You can also read the main news story here and follow BBC Breaking news tweets here, external.