Authorities said Nathaniel Sargent, 29, of Sullivan and Lacretia Dieter, 21, of Ellsworth were staying at a residence on the Taunton Bay Road in Sullivan.
The homeowners told police they woke up around 4:30 a.m. Saturday and allegedly discovered the couple going through their belongings.
Police said an altercation followed, threats were made, and that's when Nathaniel Sargent allegedly injured one person with a machete.
Authorities stated Sargent and Dieter fled the home.
Maine State Police and Hancock County Sheriffs deputies found them in a camper on the Grange Hall Road in Sullivan.
Nathaniel Sargent is facing numerous charges including theft, assault with a dangerous weapon and terrorizing.
Lacretia Dieter is also facing numerous charges including theft and disorderly conduct.