Aneurin Bevan Health Board says it has been receiving "walking wounded" casualties at the Royal Gwent Hospital's accident and emergency department in Newport after this morning's M4 crash.
A spokesperson for the health board confirmed ten casualties have been treated for minor injuries in Newport and one has been admitted with more serious injuries.
Two off-site triage centres were also set up in the area following the crash - one at St Julian's clinic and the other at Newport Centre.
More top news
Organ transplant patients from Wales will be competing in the British Transplant Games in Newcastle as it gets underway today.
The Welsh Liberal Democrats announce plans to help first-time buyers on to the property ladder.
A chilly start but warming up into the afternoon with decent spells of sunshine and light winds.