The Straits Times' News In A Minute: June 6, 2017

Today's top news headlines: All day checks of new signalling system necessary, Muis urges Muslim community to stay vigilant and paying for street hail taxis with an app could be a reality.

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

* SMRT said in a blog post that all-day performance checks of the new signalling system on the North-South Line are necessary to "work out teething issues".

* The Islamic Religious Council of Singapore has condemned the recent terror attacks and urged Muslims here to remain vigilant.

* Grab​ says it is working with local authorities to implement GrabNow, a service which allows ​commuters to flag down a vehicle by the road but still enjoy the ​fixed fares and promotions​.