A 27-year-old woman and a 52-year-old man have been arrested on suspicion of murder after a baby was found unresponsive on a bus.

Police were called by paramedics after the three-month-old girl was found on the bus at 10.20am on Wednesday at the junction of High Street and Carpenters Road in Stratford, east London, Scotland Yard said.

The child was taken to hospital where she was pronounced dead.

The woman was arrested at the hospital and the man was detained at an address in east London.

The pair are being held in custody at separate police stations.

The girl has not been formally identified and a post-mortem examination will take place on Friday.

Anyone with information is asked to call police on 020 8345 1570 or Crimestoppers on 0800 555 111.