There was no immediate claim of responsibility but Prime Minister Binali Yildirim said "the evidence points to Daesh", using another name for IS.
In response to media queries, a MHA spokesperson said: "We will calibrate security measures according to the threat environment."
Deputy Prime Minister Teo Chee Hean talks about the terror threat, South China Sea tensions, and Internet access for public servants, in an interview on Monday with Conversation With.
His father, DAP advisor Lim Kit Siang, says he will be charged on Thursday morning.
With turmoil surging through both of Britain's main parties, defiant opposition Labour chief Jeremy Corbyn meanwhile faced a looming leadership challenge after last Thursday's referendum.
The court in The Hague said in a statement it had informed the parties that it would issue its ruling at about 11am (0900 GMT) on July 12.
Between The Lines
16 years ago this week, North and South Korea agreed on a goal of eventual peaceful reunification. But after almost seven decades apart, what’s the price of one united Korea – and is it a price that ordinary Koreans are willing to pay?Fighting Tall
Singaporean marathoner and SEA Games 2015 champ SOH RUI YONG has travelled all the way to Kenya, home of the world's top distance runners. For 7 weeks, Rui Yong will run, eat and sleep like a Kenyan. Will the high-altitude training help him shave 7 minutes off his personal best to qualify for Rio?