Participants begin the 10km event at the Eastern Corridor expressway starting line. Photo: SCMP Participants begin the 10km event at the Eastern Corridor expressway starting line. Photo: SCMP
Participants begin the 10km event at the Eastern Corridor expressway starting line. Photo: SCMP

Photo taking may have caused marathon pile-up

Participants begin the 10km event at the Eastern Corridor expressway starting line. Photo: SCMP Participants begin the 10km event at the Eastern Corridor expressway starting line. Photo: SCMP
Participants begin the 10km event at the Eastern Corridor expressway starting line. Photo: SCMP
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