(Portland, OR) -- An investigation is underway near Northeast 14th and Ainsworth in Portland, where the FBI was involved in a child exploitation case. Agents were serving a warrant when the suspect barricaded themself inside of the home. After a brief standoff, tactical officers with Portland Police entered the home and found the suspect dead. Law enforcement didn't use force. There are concerns about hazardous materials inside the home and a hazardous materials team is investigating. The FBI says there's no danger to the community.