Meanwhile, a suicide car bomb in Kandahar killed 11 children.
In Kabul, journalists covering a bomb blast during the morning rush hour were standing in a loose group near the site of the explosion when the suicide bomber struck. The bomber then detonated his explosives while still among the reporters, Stanekzai said, intentionally targeting journalists.
Many had hurried to the scene with an explosion.
In 2016, 15 years after the Taliban fell, "There is no more hope", he wrote.
Widespread corruption remains a dragging anchor on progress throughout the country. There is a climate of fear.
Besides targeted killing, journalists have also been victims of being at the wrong place at the wrong time. "Who are mainly composed of young and educated people and they think they have a social responsibility to work and keep going", Kawa added.
To attack non-combatants aiding the wounded and dying is an attack on the right to health.
Secretary of State Mike Pompeo condemned the "senseless and barbaric attack". "Our thoughts and our condolences go out to his family and the families of the other journalists killed", said AFP Chairman Fabrice Fries.
Rondeaux said the failure to protect journalists and others rests first and foremost with the Afghan government.
His words were tragically prophetic.
Kandahar governor spokesman Said Aziz Ahmad Azizi confirmed the casualty toll.
The slain journalists represented a mix of international news organizations - AFP, the BBC - and local outlets such as Afghanistan's Tolo television.
The 22-year veteran of the agency leaves behind two wives and six children, including his only daughter, born earlier this month - an event that brought him great joy and was celebrated with cake at the Kabul bureau just over a week ago.
In other violence Monday, insurgents killed at least four Afghan policemen in an ambush in the northern Balkh province, said Sher Mohammad Abu-Tariq, the district chief in Nahri Shahi. The insurgents ambushed the police vehicle and fired RPGs. He was never scared of danger. Khost, a province straddling the border with Pakistan, is largely controlled by the feared Haqqani Network, although no one has claimed responsibility for the attack yet.
"Today marks one of the deadliest days on record for the media in Afghanistan and indeed around the world", CPJ Asia Program Coordinator Steven Butler said.
Friends at Shah Marai Faizi's funeral in Guldara. Trump's apparent volte-face, channelling the Grand Old Duke of York, mirrors his recent, impulsive decision to pull US troops out of Syria.
In November last year broadcaster Shamshad TV was stormed by gunmen who killed one person. Eight media persons, including a woman, died in the second blast.
The number of bombs dropped by the Western coalition in Afghanistan in early 2018 was the highest it's been since 2013.