The Independent Police Complaints Commission (IPCC) is investigating whether an officer was in pursuit of a car moments before it was involved in a crash which left an Irish toddler and his unborn sister dead.
Their parents Con (39) and Elber Twomey (36) from Cork are in a critical condition in Plymouth's Derriford Hospital following the head-on crash involving two cars on Hamelin Way, Torquay on Friday afternoon.
The couple's son Oisin (2) died, alongside the couple's unborn daughter.
The driver of the other car, a Polish man in his 20s and not yet named, was arrested at the scene but subsequently died.
The IPCC said in a statement it had conducted an assessment of the circumstances of the incident “and decided to independently investigate police actions and decisions before the collision, including whether or not an officer was in pursuit of a black Vauxhall Vectra”.
Police have been investigating whether the Vauxhall, driven by the Polish man, was travelling on the wrong side of the road when it hit with the Twomeys' Volkswagen Golf.