At least 13 people were killed and more than 50 wounded after a suicide bomber attacked a court in the Pakistani city of Mardan on Friday, police said, the latest assault targeting Pakistan's legal community.
The bomber shot his way through the main gate leading to the district court, before throwing a hand grenade and detonating his suicide vest among the morning crowds, senior police official Ejaz Khan told reporters.
Rescuers were picking their way through scattered human remains and blood-stained office equipment and files to collect survivors, witnesses said.
Amir Hussain, president of the Mardan Bar Association, said he was in a room nearby when the bomb detonated.
"There was dust everywhere, and people were crying loud with pain," he said.
His suit drenched in blood, he added: "I started picking up the wounded and putting them in cars to take them to hospital. I did not know if the people I was rescuing were dead or alive."
Lawyers were being targeted because they are "an important part of democracy, and these terrorists are opposed to democracy," he said.
"Our morale is not dented. It is still high," he added.
Mardan Rescue spokesman Bilal Ahmad Faizi said 12 people had been killed and 54 injured in the blast.
Police official Faisal Shehzad, said the dead included police and lawyers. Officials said the bomber had up to eight kilogrammes of explosives packed into his vest.
No group has yet claimed responsibility for the attack, which comes three weeks after a massive suicide blast killed scores of lawyers in the southwestern Pakistani city of Quetta, in Balochistan.
Christians targeted 
Friday's blast came as security forces fended off four suicide bombers who were trying to attack a Christian colony in the Khyber Pakhtunkhwa provincial capital of Peshawar, 60 kilometres to the west of Mardan.
Soldiers backed by army helicopters exchanged gunfire with militants in suicide vests who had tried to attack the colony near Warsak Dam, just north of Peshawar, the army said.
All four attackers were killed along with a guard at the entrance to the colony, the statement said, adding that the situation is "under control".
Jamaat-ul-Ahrar (JuA), a faction of the Pakistani Taliban, claimed responsibility for the attempt.
The group has also said it was behind the attack on lawyers in Quetta, which killed 73 people on August 8, as well as the Lahore Easter bombing which killed 75 people in Pakistan's deadliest attack this year.
The Pakistani Taliban routinely target minority groups and soft targets such as courts and schools.
Taliban militants stormed a school in Peshawar in December 2014, killing more than 150 people, mostly children, in Pakistan's deadliest-ever terror attack.
The army launched an operation in June 2014 in a bid to wipe out militant bases in the tribal areas and so bring an end to the bloody insurgency that has cost thousands of civilian lives since 2004.
Pakistani Prime Minister Nawaz Sharif condemned Friday's attacks, adding that militants were on the back foot and were "showing (their) frustration by attacking soft targets".
"They shall not get space to hide in Pakistan," he added.