Story highlights Two New Zealand student actors wounded on stage during high school musical production

Necks were cut with prop razor in production of "Sweeney Todd," CNN affiliate reports

School head says razor had been blunted and used in rehearsal without incident

(CNN) A New Zealand high school production of a musical about a murderous barber had a disastrous opening night when two teen actors had their necks cut by a prop straight razor on stage, CNN affiliate TVNZ reports.

The two 16-year-old actors were rushed to Auckland City Hospital on Wednesday night after sustaining the injuries during a performance of "Sweeney Todd: The Demon Barber of Fleet Street" at St. Kentigern College, a private school in Auckland, the New Zealand national broadcaster reported.

One boy had serious and the other moderate injuries, but both were discharged from the hospital Thursday, TVNZ reported.

CNN contacted the school but did not immediately hear back.

In comments broadcast on TVNZ, school head Stephen Cole told reporters Thursday that the students were wounded by a prop razor "covered in all sorts of duct tape and foam and paper."

Read More