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Five people, including Estonian businessmen Oleg Sõnajalg and Priit Jaagant, are killed when two Robinson R44

Tornado outbreak sequence of May 15–16, 2025 — Five people, including Estonian businessmen Oleg Sõnajalg and Priit Jaagant, are killed when two Robinson R44 civilian helicopters en route to Piikajärvi Airfield collide mid-air a

Published May 17, 2025· Updated October 28, 2026·1 min read

Context: Tornado outbreak sequence of May 15–16, 2025.

Five people, including Estonian businessmen Oleg Sõnajalg and Priit Jaagant, are killed when two Robinson R44 civilian helicopters en route to Piikajärvi Airfield collide mid-air and crash into the ground in a forested area near Eura, Satakunta, Finland. [https://news.err.ee/1609697247/no-survivors-in-finland-crash-of-two-helicopters-that-took-off-from-tallinn (Eesti Rahvusringhääling)]

Event summary via Wikipedia Current Events (2025-05-17).