At least 25 people were killed, including Agence France-Presse chief photographer Shah Marai and three other journalists, when two suicide blasts ripped through Kabul on Monday, the health ministry and AFP have confirmed.
Ministry spokesman Wahid Majroh told Afghanistan's largest private TV channel Tolo news that at least 27 people were wounded and rushed to the hospital, warning that some were in critical condition and the toll could yet rise.
The second explosion came minutes after the first at targeted reporters at the scene, police spokesman Kabul Hashmat Stanikzai told AFP.
"The bomber disguised himself as a journalist and detonated himself among the crowd," he said.
A security source also confirmed both were suicide blasts.
The first bomb was detonated by an assailant on a motorcycle and left at least four dead and five injured, according to the interior ministry.
Stanikzai confirmed that journalists had been killed, but said he did not know how many. AFP confirmed that, along with Marai, two journalists from 1TV and one from Tolo news were among the dead.
Marai joined AFP as a driver in 1996, the year the Taliban seized power, and began taking pictures on the side, covering stories including the U.S. invasion in 2001.
In 2002 he became a full-time photo stringer, rising through the ranks to become the chief photographer in the bureau.
He leaves behind six children, including a newborn daughter.
Daesh terrorist group has taken responsibility for the attack. The Afghan affiliate of the group, known as Khorasan Province, posted an urgent statement on a Daesh-affiliate website saying two of terrorists carried out the double bombing on Monday targeting the headquarters of the "renegade" Afghan intelligence services in Kabul.
It says the terrorist detonated his explosive vest, forcing members of the intelligence service to head to the area of the explosion. The statement says the second terrorist detonated his explosive vest after that.
The statement did not say that journalists were specifically targeted but exaggerated the attacks' death toll.
The attack also came days after the Taliban kicked off their spring offensive in an apparent rejection of calls for the militants to take up the Afghan government's offer of peace talks.
During the announcement, the group vowed to target U.S. forces and "their intelligence agents" as well as their "internal supporters."
The blasts follow several bloody attacks across the country including a bombing that targeted a voter registration center in Kabul that killed at least 57 people last week.
The Taliban said the offensive was partly a response to U.S. President Donald Trump's new strategy for Afghanistan announced last August, which gave US forces more leeway to go after insurgents.
President Ashraf Ghani's government is under pressure on multiple fronts this year as it prepares to hold October's long-delayed elections while its security forces struggle to get the upper hand on the battlefield and prevent civilian casualties.
Officials have acknowledged that security is a major concern because the Taliban and other militant groups control or contest large swathes of the country.
A series of attacks on voter registration centers across the war-torn has deterred many Afghans from signing up to participate in the October 20 ballot.
Some Western and Afghan officials expect 2018 to be a particularly bloody year.
General John Nicholson, the top US and NATO commander in Afghanistan, told Tolo TV last month that he expected the Taliban to carry out more suicide attacks this fighting season.
Turkey's Foreign Ministry "strongly" condemned the "heinous terrorist attacks" and wished speedy recovery to the wounded and conveyed its condolences to the relatives of the deceased.
"We learned with deep sorrow that many people were killed and wounded at a twin terrorist attack perpetrated today in Kabul," the ministry said in a statement on Monday.
