DAYTON, Ohio (WJW) — The Wright-Patterson Air Force base in Dayton was shut down for hours this weekend because of drone activity. People have been reporting these clusters of drone-like objects flying low in the night sky in several states, but very little information has been released about them. Now Wright-Patterson has been affected. What do we know about the drones over New Jersey, other parts of the country? Sunday the base confirmed its airspace was closed for four hours on Friday night and early Saturday because of small unmanned aerial systems being spotted in the vicinity. This shutdown meant that no airplanes were allowed in and out of the base. Wright-Patterson officials did not divulge the altitude at which the systems were flying, but they said they ranged in different shapes and sizes. The public affairs chief said something like this has never happened at the base before, but there appears to be no safety concern. “Installation leadership has determined none of the incursions impacted our base, our residents, our facilities or our assets,” said Wright-Patterson Public Affairs Chief Robert Purtiman. Drones, or suspected drones, have been flying over military installations recently, alarming people in several states, mostly New Jersey and New York. Officials have been reassuring people that military installations are able to detect and respond to drones and security personnel are trained to identify them. They say so far none have been aligned with a foreign actor or have malicious intent or pose a national security or public safety threat. There is growing bipartisan outrage that the federal government has not offered a clear explanation as to who is behind the confirmed drone sightings. Senate Majority Leader Chuck Schumer is asking the U.S. Department of Homeland Security to immediately deploy the Robin Radar System to get to the bottom of this. “We’re asking The Department of Homeland Security to deploy special detection systems like the Robin, which use not a linear line of sight, but 360-degree technology that has a much better chance of detecting these drones,” said Senator Schumer. “We're asking DHS to bring them to the New York and New Jersey area.” The sightings have caused concern in several states but many officials said the aerial objects are actually planes or helicopters. Police in Boston arrested two men after drones were spotted flying “dangerously close” to Logan International Airport. In Dayton, officials said they are taking measures to safeguard Wright-Patterson, including working with local authorities.