Nearly all the mainstream political parties and their leaders, including Chairman Pakistan Tehreek-e-Insaf (PTI) Imran Khan and former president Asif Zardari, on Sunday condemned the incident of hurling shoe at former prime minister Nawaz Sharif, ARY News reported.
Sharif was attacked as he reached the podium to deliver a speech at an event organised by the Jamia Naeemia outside a madrassa.
PML-N workers grabbed the man and handed him over to police.
Another man hurled a shoe at Sharif, almost missing him but hitting a person standing behind him.
Talking to Geo News, senior journalist Sohail Warraich, who was at the event, said the attacker was chanting slogans in favour of a religious party which carried out a prolonged protest against the government in Islamabad previous year for the ruling party's role in amending the Finality of Prophethood oath of lawmakers. It landed on a man standing behind Sharif.
Video footage showed Sharif visibly shocked in the immediate aftermath of the incident.
Soon after the incident, the seminary administration detained the attacker before handing him over to the police.
The attacks on key members of the ruling party have been going on during the past week.
A day earlier, Maryam Nawaz addressed PML-N's social media workers convention in Faisalabad where she spoke about contempt of court notices issued to leaders of the party.
PPP President Asif Ali Zardari also condemned the incident and said that such incidents were against the democratic values. The man was arrested but Iqbal asked police to release him without charge.
Sharif, a three-time prime minister, was ousted by the judiciary in July 2017 over corruption charges which he is now facing in Pakistani courts. Police are investigating the case.
Muttahida Qaumi Movement-Pakistan (MQM-P) leader Farooq Sattar said it was another rueful and unethical episode of such incidents.
"Nothing happened, neither touched me nor interrupted my speech", he said, adding, "However PTI (was) exposed, condemned by people".