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
Frustrated commuters took to Twitter to brand Stratford station the "7th circle of Hell" as football fans caused rush hour congestion.
People have been protesting outside the French Embassy today over burkinis being banned on some beaches in France.
Police have released CCTV footage to try to track down a gang who robbed two teenagers of their bikes and mobile phones.