On 23 June 2021, at approximately 11 am local time, a car bomb exploded in the Johar Town area of Lahore, Punjab, Pakistan. The blast killed three people and injured more than 21 others. An estimated 30 kilograms of explosives were used in the device. Police stated they believed the target was a house damaged in the bombing, which was reportedly where Hafiz Saeed, co-founder of Lashkar-e-Taiba and chief of Jama'at-ud-Da'wah, was living at the time.
In the two days following the bombing, authorities conducted raids to locate and arrest suspects, who were subsequently charged with explosives offences. A foreign national identified as Peter Paul David was offloaded from a Karachi-bound flight and taken to an undisclosed location for interrogation. Investigators noted he had been frequently traveling between Karachi, Lahore, and Dubai and could not account for the purpose of these trips. The vehicle used in the bombing had changed ownership multiple times, with David identified as its last owner; he stated he had lent the car to a masked friend for a few days and had not seen the person's face.
Punjab Chief Minister Usman Buzdar said a "foreign hostile agency" was directly involved in the attack and had provided financial support to those responsible. Investigation Officer Wakeel Ahmad stated that investigators had found evidence implicating the Indian secret service in the attack. On 4 July 2021, Moeed Yusuf, National Security Adviser to the Prime Minister of Pakistan, said the attack's "main mastermind" belonged to India's Research and Analysis Wing (R&AW), lived in India, and was an Indian citizen, and that the funding for the attack directly originated from India. Yusuf also alleged that cyber attacks had been carried out against investigation equipment to allow time for a network to disperse. India's External Affairs spokesperson, Arindam Bagchi, rejected these allegations as "baseless propaganda."
On 27 April 2022, the Punjab Counter Terrorism Department stated it had arrested a man identified as Samiul Haq, described as the mastermind of the blast, along with a facilitator identified as Uzair Akbar, in Balochistan.