Luabo

During the takeoff roll at Luabo Airport, at a speed of 180 km/h, the crew noted severe vibrations coming from the nose gear. Decision was taken to abort the takeoff procedure. Unable to stop within the remaining distance (the Luabo paved runway is 1,000 metres long), the aircraft overran, lost its nose gear and came to rest 500 metres further in a cemetery, bursting into flames. The copilot was killed while 10 other occupants escaped with minor injuries.

After takeoff from Luabo Airport, while climbing, the twin engine aircraft was shot down by ground fire and crashed. The pilot, sole on board, was killed. He was completing a flight on behalf of the International Committee of the Red Cross.

The Scottish Aviation Twin Pioneer was on a sales demonstration flight in Africa. A flight out of Luabo was made with a takeoff weight within 100 kg of the maximum permitted. The aircraft had climbed to 700 feet when the no. 1 prop was feathered. When over the Zambesi River, the plane began to lose height. The aircraft continued to lose height even with the no. 2 engine at maximum continuous power, so attempts were made to restart the no. 1 engine at 300 feet. These attempts were unsuccessful and a forced landing was carried out on an island in the river. Following impact, the Twin Pioneer slid for approximately 75 yards on soft ground and the main gear and both wings became detached.
Source:
https://aviation-safety.net/database/record.php?id=19591212-1