The police tell the news agency AP that the women's condition is stable.

According to the New York Post, the injuries are not life-threatening.

The attack took place on Saturday afternoon.

According to the police, the attacker was a man - a frequent visitor - who was denied access to the museum because he behaved disorderly earlier in the week.

- He was upset that he was not allowed to enter, jumped over the reception desk and stabbed two of the employees several times, says John Miller at the New York police to AP.

The women were taken to Bellevue Hospital immediately after the attack.

At the same time, the museum's security guards made sure to evacuate the building.

Police are searching for the attacker, Miller said.