In today's The Straits Times News In A Minute video, we look at:

* A rogue train which had a faulty signalling hardware caused the Circle Line to fail over several days recently.

* Two more senior staff members have been sacked from the Singapore Environment Council (SEC), just days after its executive director Edwin Seah was terminated from duty.

* The police are investigating a viral video of boys raining blows on another boy in a stairwell.