Police Scotland have launched an investigation after a member of Celtic's backroom staff was hit with a glass bottle during the cinch Premiership match with Rangers at Ibrox.

Celtic manager Ange Postecoglou confirmed that one of his colleagues needed medical treatment at half-time after being struck by the object thrown from the stands.

It is understood the staff member required stitches to a head wound during the interval.

HeraldScotland:

Glass bottles collected after the match

The second-half was also delayed for several minutes so that pieces of a broken bottle which had been hurled into the Celtic penalty area could be cleared away.

Postecoglou later branded those responsible “idiots”.

READ MORE: Rangers vs Celtic second-half delayed after broken glass thrown onto pitch

A Celtic statement read: “We can confirm that a member of our backroom staff was struck by a glass bottle.

"He required urgent medical treatment and stitches to a head wound. The matter is now in the hands of Police Scotland.”

The second-half of the Glasgow derby was delayed after broken glass was thrown on to the pitch.

HeraldScotland:

Rangers staff pick up broken glass

Celtic keeper Joe Hart raised the concerns to referee Willie Collum and his officials, as he pointed out the broken beer bottles surrounding his goalmouth. 

Sky Sports revealed that broken glass had been discovered on the field after being thrown on to the pitch by a section of the Rangers support.

READ MORE: Rangers hero Kris Boyd admits title race is over after Celtic win​ 

This resulted in the re-start of the game after half-time being delayed for approximately five-minutes as health and safety stay cleared the area appropriately. 

Celtic defeated their old rivals 2-1 to surge six points clear at the top of the table with six games remaining.

A Police Scotland spokesperson said: "We are aware of a glass bottle being thrown at Ibrox Stadium, Glasgow during the Rangers v Celtic match on Sunday, 3 April, 2022.

“One man has sustained injuries as a result of this and required treatment.

"Enquiries are currently ongoing to establish the full circumstances."