EMERGENCY services have described a collision between a truck and train near Newcastle as "minor".
Firefighters were called to Kooragang Island about 7.27pm on Wednesday night after the incident.
A Fire and Rescue NSW spokesman said that crews had tackled a minor fire and were wearing breathing apparatus as they dealt with ammonia and a gas.
The spokesman confirmed the incident did not involve ammonium nitrate, and that crews were in the process of rendering the Heron Road site safe.
Neither the train or truck driver had sustained injuries in the incident, he said.
