A rival bidder in the race to buy Govia Thameslink Railway operator Go-Ahead Group says it is still assessing its options. Kelsian said it has until August 1 to make a firm offer for the Newcastle-based bus and rail giant, or walk away. It is considering whether to muscle in on Go-Ahead's £650m agreement to be bought by Australian bus operator Kinetic and Globalvia. "Kelsian continues to carefully assess all its options in relation to the opportunity and accordingly continues to urge Go-Ahead shareholders to take no action at this time," the business said. Read more: go here for more North East business news The update in the potential takeover comes as the North East group gears up to deliver a good full year performance, as passenger numbers steadily moving to pre-pandemic levels.