Two people have been killed and 13 injured after a giant, inflatable sculpture blew free from its moorings. Many were inside the artwork, which consists of connected rooms, when it lifted 30ft into the air at Riverside Park, Chester-le-Street, County Durham. The Dreamspace sculpture is thought to have drifted for about 40m. A 38-year-old woman from the town and a 68-year-old woman from Seaham died. A three-year-old girl was seriously injured and was flown to hospital.