A loud blast and gunshots have been reported in 14 Riverside drive in Westlands, a source has told the Star.
The gunshots could be heard from all quarters on Tuesday afternoon.
"Same compound with Dusit D2 and commission for revenue allocation. For the past 15 minutes. Started with an explosion. We are lying on the floor in our offices can't look out," one of the workers said.
There is an on-going police operation along that road and motorists are encouraged to avoid the area.
More to follow