. >> gary vestman, good to speak to you. >>> weeks now there's been another challenge. fuel supplies are running out. the tunnels widely used to smuggle goods are being shut down by the egyptian military. simon macgregor wood has the story. >> fuel is a daily relinquish e cause is here just across the border in egypt. for weeks, the army has been 80% of its fuel used to come through tunnels. but the military backed government in cairo is cracking down on armed groups in sinai. it's saying they're getting help from gaza, that's why they are destroying the tunnels. relations withha with hamas hasr been worse. >> involved themselves in whatever happened with the muslim brotherhood, we say no it's actually all fake and it's not true. >> this latest crisis shows how dependent the people of gaza are on the fragile political landscape around them. and in egypt it's changed dramatically. with regime change there one of gaza's vital supply lines seems to be changing. egyptian officials say the tunnels will not reopen. even the crossing for people has slowed for people. gaza's fu