Fox News Flash top headlines are here. Check out what's clicking on Foxnews.com. The Israel Defense Forces said early Monday that it conducted military strikes on a Hamas base in response to an arson balloon launch. The IDF said the base—which is near civilian sites, including a school-- contained infrastructure "and means used for terror activity." "We will continue to respond to any terror attempts from Gaza," the statement said. The airstrike came several hours after the incendiary balloons were launched into Israel by activists linked to Gaza's ruling Hamas militant group. Photos and video posted on social media showed them sending the balloons into Israel. On one of them was written the message: "Time is running out."