Anti-roads protesters, some of whom climbed on to the roof of Transport Secretary John MacGregor's house in Muswell Hill, north London, earlier this year, yesterday turned their attention to his office.

About a dozen demontrators scaled the walls of the Department of Transport headquarters in Marsham Street to protest against the extension of the M11 into east London. They unfurled a banner reading 'M11 Link? You must be choking? . . . love Claremont Road', which is in Leytonstone, at the heart of the road works, and let off smoke pellets to simulate smog.