[10][11] The attack was followed by several further incidents, including a death threat to a Democratic Action Party (DAP) member of parliament (MP), and two individuals trying to trespass into the Istana Negara.

[17] The Malaysian Islamic Party questioned the security preparedness of the country's civil forces and also requested the Home Ministry to answer on why the police failed to stop the attack from happening.

[7] Home Minister Saifuddin Nasution Ismail affirmed that the attack was carried out by a lone suspect and that they had former terrorist or militant group members under constant monitoring.

[18] Abu Bakar Ba'asyir, the co-founder of the militant group Jemaah Islamiyah (JI), condemned the incident and insisted he personally was not involved in the attack through a video sent by his son to Malaysiakini.

He further expressed that whoever accuses or trying to implicate him with the attack are lying and asking them to prove it in front of Allah and advising Muslim youths to not follow hardline ways by easily labelling others as infidels without any reasons based on the Quran.