A taxi driver has been arrested after allegedly getting behind the wheel of an ambulance which was blocking his path.
Police said it happened on Sunday in Pevensey Road, Eastbourne, where paramedics had been preparing to take a one-month-old baby to hospital.
Officers were called after paramedics reported their vehicle had been taken.
The ambulance was discovered nearby. The 64-year-old taxi driver left the scene in his own car.
The taxi driver has been bailed until 31 August pending further inquiries.
A Sussex Police spokesman said: "They reported at 1240 BST that a taxi driver had objected to the road being temporarily obstructed, so he had just got into their ambulance and drove it a short distance up the road before driving away in his own taxi.
"The ambulance crew retrieved their vehicle and took the baby to hospital.
"The 64-year-old came to the police station of his own accord a short while later and was arrested on suspicion of taking a vehicle without consent, and obstructing an emergency worker contrary to the Emergency Workers (Obstruction) Act 2006."