0ur security correspondent, gordon correra, has been taking a look. was doing. commercial drones carrying explosives were flown towards a security fence. these pictures are from hamas. we are using them to show how the curry that the attacks. bbc verify has been able to confirm them as being north of gaza. 0ne don't take at an unmanned gun emplacement. crucially, they also knocked out communications towers and cameras, leaving israel blanc. with rockets flying overhead, hamas fighters flew out on motorised hang gliders. this is also north of gaza. at the same time, explosives were used to blow holes in defence some locations. at least 1000 gunmen were no inside israel. they overwhelmed border checkpoints like this one, adding to the chaos for israeli forces, who were struggling to communicate and understand the scale of events. there is a complex attack would have taken months, perhaps years of preparation. hamas has put out this propaganda video, claiming to show some of the trini although we can't verify what it was filmed. the fact they managed to