Police are looking into an incident involving Foreign Office minister Mark Field after he was seen shoving a Greenpeace activist out of a Mansion House dinner event where Chancellor Philip Hammond was speaking. <br /> <br />Mr Field, who has apologised for the incident, has faced calls to resign from the government. <br /> Report by Carrf. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn
