The government has announced a shortlist of firms in the running to improve rail services in East Anglia. 

Abellio East Anglia - a joint venture between Abellio and Stagecoach - First East Anglia and National Express East Anglia are the three firms in contention for the contract. 

All these companies have successfully passed the prequalification stage, and will now work on developing their proposals with the government before receiving invitation to tender in August. 

Questions asked of the bidders will include considerations such as how they intend to improve the region's railways, and what they have in mind for reduced journey times to London and better connections. 

Rail minister Claire Perry said: "We are investing record amounts in building a world-class railway as part of our long-term economic plan, and I am determined that passengers in East Anglia will benefit."