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Ambulance siren hi-res stock photography and images - Alamy

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Martinshorn, signal horn on an emergency vehicle, compressed air fanfare, ambulance, signal horn, siren Stock Photo - Alamy

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Martinshorn, signal horn on an emergency vehicle, compressed air fanfare, ambulance, signal horn, siren Stock Photo - Alamy

Ambulance emergency hi-res stock photography and images - Page 3 - Alamy

Emergency vehicle hi-res stock photography and images - Alamy