The President of Poland Lech Kaczynski has expressed condolences to President of Azerbaijan Ilham Aliyev in connection with the tragedy that occurred at Azerbaijani State Oil Academy on April 30, AzerTaj state news agency reported.
"I accepted with deep regret the news on the tragedy that occurred as a result of attack by mentally unbalanced person on one of the higher schools in Azerbaijan - Azerbaijan State Oil Academy, which claimed the lives of many young people," the message says.
The death of innocent people shocked everyone, Kaczynski said.