Old plane broke up during takeoff.
In Canada at an Airshow in Abbotsford crashed plane 1930s model years, according to the Chronicle.info with reference to Focus.
The incident occurred after the end of the show, when the deHaviland Dragon Rapide biplane took off.
On Board were the pilot and four passengers. All five were hospitalized. One of the victims is in critical condition.
The causes of the incident are being investigated.