At around 7:50pm, the fire alarm in my block rang. I though at first was just a routine mock up fire evacuation practice. But my friend told me that they would have waited until so late when everyone has gone home. So we walked to the podium dowstairs and waited, for about 15 mins. I could see the firemen walking in and out the lift. I later found out from the security guard that there was a small burning in a lift near the lobby, and it traggered off the alarm.