Four teenage girls have been arrested in connection with a robbery outside Bushey train station.

The victim, a 16-year-old girl, was approached by a group of teenagers in Pinner Road just before 3.45pm on Thursday.

One of the teenagers allegedly grabbed her arm and threw liquid in her face – later determined to be aloe vera water – before stealing her iPhone 8, police said.

Four suspects, three 15-year-old girls and one 14-year-old girl, all from the London area, were arrested the same day in Watford High Street on suspicion of robbery after officers had reviewed CCTV of the incident.

The four girls have since been released under investigation while enquiries continue.

Detective Inspector Jason Finnegan, who leads the Watford Local Crime Unit, said: “This has been an understandably frightening ordeal for the victim, who is thankfully not physically harmed.

“I want to reassure her and her family that we are doing all we can to investigate this incident and I am pleased we have been able to make four arrests.

“I also want to stress to the community that we take these types of reports very seriously and we will do all we can to bring those responsible to justice.

“We have already spoken to a number of people as part of our enquiries however we are keen to identify any other witnesses who saw what happened. The incident occurred on a busy road where lots of motorists and pedestrians would have been passing by.

“If you have any information that you feel would assist us, then please get in touch. In particular, if you were driving along Pinner Road at the time of the incident and have a dash cam fitted to your vehicle, we would very much like to hear from you.”