Southern strike: Acas talks beginpublished at 11:06 Greenwich Mean Time 14 December 2016
Bob Dale
BBC Live reporter
Talks are now underway to find a solution to the dispute.
Southern bosses are meeting union chiefs at the headquarters of the conciliation service Acas.
They're expected to continue throughout the day.
The strike's over proposed changes in roles for both guards and drivers, with drivers being responsible for opening and closing train doors at stations.