A woman and a teenage boy have been charged with an attack on two Victorian paramedics that left one needing surgery.
The paramedic was knocked to the ground up to four times and broke his foot during Thursday night's attack.
Police have also arrested another woman over the assault in Reservoir.
Two paramedics arrived at a call out at 6.30pm to find two women helping a disoriented man.
The women left but returned with a young man and then allegedly attacked the paramedics.
"He was kicked and punched repeatedly and knocked to the ground three or four times and unfortunately in one of the instances when he fell he's broken his foot quite badly," Ambulance Victoria's Mick Stephenson told reporters.
The paramedic was due to have surgery yesterday.
A 15-year-old Ivanhoe boy has been charged with intentionally causing serious injury, serious assault of an emergency service worker and other assault-related offences.
A 30-year-old Epping woman has been charged with the same offences, as well as other theft offences.
Police also allege the suspects rammed the ambulance before fleeing.
An 18-year-old Reservoir woman handed herself in to a police station at 7pm and has been arrested over the alleged attack.
Mr Stephenson said violence towards paramedics was unacceptable.
"We have an incident reported once a day, although we believe there to be significant under-reporting from our paramedics and they are exposed to it more often than that," he said.
Ambulance Union state secretary Steve McGhie said paramedics needed more security.
"There may need to be a trial of body cameras for their own safety. I mean it won't stop these incidents but it will help catch the perpetrators," Mr McGhie said.
"We can't have a workplace where our paramedics are exposed to this risk, but it's ongoing and unpredictable."
