HOUSTON (KTRK) -- Several explosives were found inside a northwest Harris County home after two suspects were arrested in a child pornography investigation.An employee at the Office Depot on the Northwest Freeway in Cypress discovered the child porn while repairing the iPhone of 25-year-old Joshua Bishnow. The manager called deputies and when Bishnow came to pick up the phone, he was met by law enforcement. According to charging documents, 867 images were downloaded from the phone and flagged as child porn.On Wednesday morning, a task force arrived at Bishnow's home in the 17500 block of Haywood Oaks Drive. Once inside, two people were arrested for their involvement in the investigation and the explosives were found.Authorities say one suspect fired at deputies. No one was hit and both suspects were taken into custody without further incident.No other details have been released.