A special inquiry is to examine how a city centre underpass in Belfast became flooded below 20 feet of water trapping motorists, officials revealed today.
A Stormont committee met in special session to quiz civil servants on how torrential weekend rain caused chaos in Northern Ireland.
Officials revealed a team of consultants will now establish how cars became trapped in a multi-million pound underpass built on Belfast's Westlink thoroughfare which disappeared below floodwaters on Saturday.
The city centre route which links the province's motorways only reopened today after downpours flooded homes and caused traffic chaos.
