A 22-year-old man remains in custody over the murder of a teenage girl who was stabbed to death on a crowded bus on her way to school, police said.
Extra police officers will be patrolling public transport this morning in the wake of yesterday's tragedy to reassure commuters.
A 22-year-old man was arrested in connection with the fatal stabbing of a "bright and popular" teenager on a bus as she travelled to school.
The 16-year-old schoolgirl stabbed to death on a bus in Birmingham during rush hour has been named as Christina Edkins.
West Midlands Police have launched a manhunt after a 16-year-old girl was fatally stabbed on a bus in Birmingham on her way to school.