New video shows IS hostage John Cantlie criticising UK, US approach to hostage negotiations

The Islamic State militants have released a fresh propaganda video featuring British captive John Cantlie.

Cantlie, who was kidnapped by the terror group in Syria, can be seen reading out from an apparently scripted message, criticising the UK and US approach to hostage negotiations, the BBC reports.

The British journalist is also seen reading out emails exchanged between IS and the families of hostages, which according to claims made in the video include criticisms of the US government made by the families.

The six-minute video ends with Cantlie promising more messages in the future.

A freelance journalist from Haslemere in Surry, Cantlie was taken hostage by IS in November 2012.

Earlier, Cantlie's sister said that her brother probably believed "two-thirds" of what he was saying in the propaganda videos released by the group.

Jessica Cantlie had issued a plea last week urging her brother's captors to renew contact with her family.