Police closed Hague Avenue near Sullivant Avenue in West Columbus Wednesday night due to a SWAT standoff.
Officers said they were trying to serve a gross sexual imposition warrant just before 6:30 p.m.
A man inside refused to come out and hid in the basement. Police said he had a knife and took medication.
SWAT officers entered the home after two hours of trying to negotiate with the man.
Police said he suffered a heart attack on the way to the hospital. His condition was not released.
Watch 10TV News and refresh 10TV.com for the latest.