Morrow County sheriff's deputies are investigating two assaults that occurred within 20 minutes of each other.
The assaults are believed to be unrelated at this time, said Undersheriff Steven Myren.
Deputies were first called at 10:21 p.m. Sunday after a 32-year-old Boardman man reported he had been stabbed or cut in the leg.
The victim said he was putting his dogs in a kennel when an unknown assailant attacked him, Myren said. No additional information was released.
At 10:38 p.m., a manager of the Irrigon Mobile Court reported that he had been assaulted and hit by a van during an altercation with a group of four men.
The suspects tried to drive away, but their van struck an irrigation riser and became stuck in a field, Myren said. Minor flooding occurred in the area until the water could be shut off.
All four men took off, but one suspect was caught with the help of Boardman police. A second man turned himself in a short time later.
Two other suspects are still being sought.
Saul Salas Salas and Robert Hector Verduzco, both 23 of Irrigon, were booked into the Umatilla County jail on multiple charges including second-degree assault and menacing.
The trailer park manager, Joseph L. Newby, 32, of Irrigon, was treated at Good Shepherd Hospital with minor injuries.