At least twenty people have been injured, some seriously, when two cranes fell onto a row of houses in the western Dutch city of Alphen aan den Rijn.<br /><br /> The cranes were restoring a nearby bridge when they fell down.<br /><br /> A spokesperson for the local fire brigade said heavy machinery is being sent to locate anyone who may be trapped in the wreckage.<br /><br /> 2 hijskranen met brugdek Kon. Julianabrug omgevallen in Alphen aan den Rijn. Meerdere panden beschadigd studioalphen pic.twitter.com/QPkbGjczVm— Mike Mourits (mikemourits) August 3, 2015<br /><br /> De ravage bij de #Julianabrug van dichtbij. http://t.co/rA0pVkVsYr pic.twitter.com/wZBPReJ8cc— Omroep West (@omroepwest) August 3, 2015