We were returning from Lorne. It was very hot and a total fire ban day (as happens on the day you leave the beach!). However, the trip was uneventful until we were nearly home. At that stage, there was obviously smoke in the air. As we crossed the Kooyong Rd railway bridge, we could see a small fire on the railway reserve. It was generating lots of smoke and although the flames weren't very large, they were increasing in size. After the onlookers had gathered, the fire engines turned up and fixed things pretty quickly.
The trains seemed to have stopped, and on the tracks were a couple of official-looking men, who I assume were from Metro. In fact, I reckon they may have been on the scene more quickly than the fire brigade!