British engineers are researching bomb-proof train carriages to prevent a repeat of the carnage left by the London Underground terrorist attacks.
Blast-resilient rolling stock has been developed by the EU-funded SecureMetro project, which was launched three years ago.
The project was created to test designs for Tube and overground carriages that minimise injury and death, if a bomb attack was to take place.
Focusing on containing the blast impact, and reducing levels of debris, the research involved a controlled explosion on a decommissioned Tube carriage.
Tests were carried out by the team at Newcastle University's School of Mechanical and Systems Engineering.
More top news
Tesco is withdrawing a range of soft drinks, including sugary varieties of Ribena and Capri Sun, due to concerns over child obesity.
Mother charged with intent to pervert the course of justice after alleging her breastfeeding child was pulled from her by a security guard.
Dash-cam footage shows the plucky pair risk a head-on collision to stop the car which was going at 70mph.