NEW YORK (Reuters) -A spokesman for audit and advisory firm KPMG said in a statement the office at 345 Park Avenue will be closed on Tuesday, after a shooting in the building on Monday evening that left four dead, including a Blackstone executive.

No KPMG employees were injured in the shooting, according to a post by Chair and CEO Tim Walsh and U.S. Managing Principal Atif Zaim on the company's LinkedIn page.

"Our hearts are with the victims of this horrific act and their families, as well as all of our neighbors in 345 Park. This was a terrible, tragic, and frightening event. We are incredibly grateful for the bravery of building security and law enforcement. At this time, we are not aware of any significant physical injuries to our KPMG colleagues, " the statement on LinkedIn said.