Three new measles cases linked to a school at the centre of a renewed outbreak of the disease are being investigated in a region recovering from a major epidemic.

Health chiefs are urging parents with children showing symptoms of the potentially killer illness to keep them away from school.

The warning comes as efforts began to give the measles, mumps and rubella (MMR) jab to 200 pupils at a south Wales school.

The measure was ordered when a pupil became the first confirmed new measles case since the epidemic, the biggest ever to hit Wales, ended three months ago.

The urgent task of giving the triple vaccination to pupils at Cwmtawe School, in Port Talbot, south Wales, continues today.

Of the three new suspected measles cases, two concern pupils attending Ysgol Y Cribarth, in Abercrave, and are connected to the earlier case at Cwmtawe School.

Public Health Wales has urged parents of unvaccinated children who attend either school to arrange for them to have the MMR jab.