British Transport Police has released images of a man, who is believed to have assaulted a 30-year-old woman carrying a pushchair, which left her two-year old son with a fractured collar bone at Highams Park station, in Chingford on June 23.
Anyone with information is asked to contact British Transport Police (BTP) on 0800 40 50 40 quoting background reference B9/LNA of 24/06/2013. Information can also be passed to the independent charity Crimestoppers, anonymously, on 0800 555 111.
More top news
Julie Etchingham meets the original Foxy Lady - her cousin Kathy - who talks of life with former boyfriend Jimi Hendrix in their old flat.
Transport bosses have admitted a decision about funding for Luton's railway station's much-needed facelift will not be made any time soon.
A man who helped officers apprehend a suspected drug dealer by sticking out his foot and tripping him has been hailed a "legend" by police.