A hunt protester was taken to hospital after an incident on Dartmoor.
Police were called to Widecombe-in- the-Moor on Saturday after the protester had to be taken to Torbay hospital with a suspected broken hand.
A man was arrested on suspicion of assault and has been taken to Torquay police station for questioning.
Officers have not confirmed whether he was part of the hunt, which met for the first time since a ban on hunting was forced through parliament.
Nearly 20 members of the Hunt Saboteurs Association (HSA) were present at the Dartmoor meet.
An HSA spokesman said the incident happened on the moor just after the hunt started its meet.
He said: "We called the police and ambulance, then went back to follow the hunt."