Well as one of the 'ambulance people' I not sure I d risk my job to call the press... the services I ve worked for expressly forbid speaking with the press.
You may not, but rightly or wrongly, plenty do, risk or not. I suppose the lure of a few notes always helps.
Also, when dealing with major incidents a lot of the emergency services put the details on their 'press' answerphone service for the media to get information.