The IDF released video footage Monday of an air strike in northern Gaza Saturday, which it said shows Hamas weapons storage facilities located in the middle of residential areas and in close proximity to civilian homes. "The documentation shows an initial explosion resulting from the Air Force strike, immediately followed by secondary explosions and sustained combustion, indicating the presence of weapons inside (the building)," the IDF said.At the beginning of the footage, circles indicate a building described as "the target," and other buildings in the top left are described as "civilian buildings." The IDF struck targets in Gaza Saturday night after a weekend during which terrorists in the Strip fired more than 20 rockets at Israeli territory. There were no reports of injuries in that strike, but the IDF emphasized the video footage proves that Hamas chooses to store weapons in populated areas. RELATED:Two reportedly wounded in Israeli strike on GazaThe IDF said it regrets any harm to uninvolved civilians caused by the presence of explosives and weapons at targeted sites, including rockets.The IDF holds Hamas responsible for all terror activity emanating from Gaza and it will continue to respond forcefully to attacks on Israeli citizens.