At least six people have been injured after the attacker blew himself up outside the police headquarters in Indonesia's Medan city on Wednesday.
According to reports, the bomber, identified as a 24-year-old university student, walked into the compound around 8:40 am (local time).
The motive behind the attack was not immediately clear, but initial investigations have revealed that the student was a "lone wolf" but authorities are still trying to establish whether he had links to any militant groups.
It comes just a month after an IS militant attacked a former security minister.
Police said the six people – five police officers and one civilian – injured in the attack have been shifted to nearby hospitals.
"All pieces found at the scene will be tested by a forensic lab to determine the type of bomb," a top police officer told the media.


Israel strikes Tehran as Trump says US negotiating to end war
No injuries reported as drone attack hits fuel tank at Kuwait's airport
US expected to send thousands more soldiers to Middle East
Philippines works with Washington to obtain oil from US-sanctioned countries
US safety agency says tracking system failed at LaGuardia during jet collision
Russia fires record 948 drones against Ukraine over 24 hours, Kyiv says
Death toll rises to 69 in Colombian military plane crash
One killed, five injured in Bahrain from Iran strikes
