Two trains collide near Bedford, prompting an emergency response and disruption to local rail services. Police report that at least one person dies and others are injured following the crash. Multiple outlets state that authorities issue warnings for members of the public to avoid the area while responders attend the scene. Rail operator Thameslink says all lines between Luton and Bedford are blocked, and services in the affected section are cancelled as crews and emergency services deal with what is described as a serious incident. The Independent and i (UK) both report public guidance to stay away from the vicinity as investigations and recovery operations are underway. Coverage across outlets emphasizes the immediate impact on train travel between Luton and Bedford and the involvement of emergency services at the site. Details on the cause of the collision are not provided in the available summaries, and further information is expected as authorities complete their initial response and assessments.