An investigation is underway after a man was found dead following an officer-involved shooting in Mesa Saturday night.

According to Mesa police, officers responded to an area near McKellips and Lindsay roads around 5 p.m in response to a 9-1-1 hangup call. When officers got on scene, they encountered a woman and a man. Police say that man was agitated and refused to talk to officers.

The woman walked towards officers and was escorted away from the home. The man began yelling at officers and went back inside the home. When he came back outside, officers say he appeared to be holding a handgun.

Just got on scene of officer-involved shooting at Conquistador mobile home park in Mesa @abc15 pic.twitter.com/LiOXyR7uEy — John Genovese (@JEGenovese) June 17, 2018

Police said the man raised the suspected gun at officers, an officer fired his weapon, and the man retreated back inside his home. A barricade situation then ensued, officials said.

After SWAT officers arrived on scene, police made entry and cleared the residence. The man was found dead inside. The man was later identified as 53-year-old Michael Fletcher.

An update from Mesa police on Sunday stated that it appeared Fletcher died from a single gunshot wound that is suspected to have come from a Mesa officer's weapon, but that confirmation will need to come from the medical examiner's office.

Police also said that a BB gun was found at the scene.

No officers were injured in the incident.

This is the second officer-involved shooting incident on Saturday and marks the 46th officer-involved shooting in the Valley so far for 2018. This is also the fifth officer-involved shooting in the Valley this week.

Earlier Saturday morning, a Phoenix police officer shot a suspect after witnesses reportedly saw him walking around a neighborhood with a gun and pointing it at people. The suspect later died at the hospital.

Stay with ABC15 and abc15.com for updates on this developing story.