Speaking to ITV News, Virgin Train has confirmed: "Both lines to Manchester are now open. Services are beginning to run, but delays will continue for the time being"
More top news
A man who met PC Keith Palmer said his murder "sent a shiver down my spine".
Officers were given the touching letter at Brixton Station while they were on a reassurance patrol after yesterday's attack
The 52-year-old had previous convictions for violence but was not on the anti-terror watchlist.