Footage shows armed police surrounding a crashed vehicle outside the Houses of Parliament on Tuesday morning. Scotland Yard says a man has been arrested  Subscribe to Guardian News on YouTube ► http://bit.ly/guardianwiressub Parliament crash: pedestrians injured as car drives into barriers ► https://www.theguardian.com/uk-news/2018/aug/14/car-crashes-security-barriers-houses-of-parliament Support the Guardian ► https://theguardian.com/supportus The Guardian ► https://www.theguardian.com The Guardian YouTube network: The Guardian ► www.youtube.com/theguardian Owen Jones talks ► http://bit.ly/subsowenjones Guardian Football ► http://is.gd/guardianfootball Guardian Sport ► http://bit.ly/GDNsport Guardian Culture ► http://is.gd/guardianculture Guardian Science and Tech ► http://is.gd/guardiantech