Rail platform safety staff are to stage a 24-hour strike in a dispute over pay.

Members of the Rail, Maritime and Transport (RMT) union working as Travel Safe officers at stations on London Overground will walk out on Thursday, saying they face a wage freeze.

RMT general secretary Mick Cash said: "Travel Safe officers offer security for passengers and staff against a background of increasing anti-social and violent behaviour on the railways.

"Our members do an important job on London Overground and deserve to be paid properly for the work that they do.

"A pay freeze for workers on a low wage is an insult and represents a pay cut in real terms."

Rory O'Neill, Transport for London's general manager for London Overground, said: "This issue is between the RMT union and STM Security, which provides Travel Safe Officers on the London Overground.

"Measures are in place to ensure a high level of safety and security is maintained for our customers and the London Overground service should industrial action go ahead.

"We urge all parties to sit down and talk through the issues to try and resolve them as soon as possible."

An Arriva Rail London spokesman said: "Arriva Rail London is not party to this industrial dispute, it is a matter between the RMT union and STM Security, which supplies Travel Safe Officers on the London Overground.

"STM has taken steps to put a comprehensive plan in place to minimise impact on customers travelling on London Overground services and to maintain our high levels of safety and security."