Political and religious leaders appealed for peace and dialogue after a funeral bombing in Kabul killed at least 7 people on June 3.
Measures include installation of four security gates at key checkpoints in the Afghan capital.
The main suspects include the Afghan Taliban, ISIS, Haqqani Network and al-Qaeda.
Dozens of people died and hundreds were wounded in the carnage just days into the start of Ramadan.
The suicide attack shows the Taliban's disregard for Islam, holy days and innocent lives.
The bereaved Nangarhar grandmother is standing up against a terrorist group that killed three of her sons and three grandsons.
The group that has terrorised Afghans for the past few years is using children as human shields in Iraq as liberating forces finalise their campaign against the ISIS stronghold of Mosul.
Before retreating from areas of Helmand Province, the Taliban planted mines in civilians' houses, public places and mosques.
The two groups are killing each other over the ability to plunder long-suffering civilians.