4 killed, several injured as tractor-trolley plunges into deep gorge in Gilgit-Baltistan / Tesco trials giant trolley scales in Gateshead / $100m Highland Park Pak'nSave bringing in more trolleys as more than 5700 people pour in / The little UK town full of thousands of abandoned shopping trolleys / Abandoned shopping trolleys sign of 'entitlement and laziness', says Pt Chevalier resident / Warning after Northland woman in 70s has handbag taken from supermarket trolley / Best trolley bags in India for that manoeuvrability and the ultimate voyage experience / Carrefour's mystery shopping trolleys roll into Malaga for the first time ever / River Stort given new lease of life in PS25m rewilding project: 'Trolleys have been pulled out of the river' / Hong Kong team develops AI-equipped trolley to ease strain on workers