Dr Mahathir's lawyer Mohamed Haniff Khatri Abdulla said the suspects disrupted the forum by throwing shoes, slippers and chairs, and lighting flares.
Pakatan Harapan chairman Dr Mahathir Mohamad was answering questions at the "Nothing to Hide 2.0" forum this afternoon when out of nowhere, two projectiles with pungent chemical odour were hurled in his direction.
Mahathir was safely escorted out of the hall.
"We haven't decided what to charge them with yet, because no one has yet to lodge a police report", he said, adding that no serious injuries were reported in the incident.
Chinese Vice Premier in Islamabad to attend Pakistan's I-Day
Wazir Mansion, known as 'Quaid-e-Azam Birthplace Museum, ' was a family home of Jinnah in the district Kharadar of Karachi, Sindh. The day will dawn with thirty-one gun salute in the federal capital and twenty-one gun salute in the provincial capitals.
Shah Alam district police chief Shafien Mamat says 3 suspects, aged 17 to 19, arrested as Nothing to Hide 2.0 forum ends in chaos.
"It is clear it was created to silence Mahathir and the opposition", said Syed Saddiq, the youth chief of Mahathir's recently established Bersatu party.
Opposition lawmaker Azmin Ali said: "Najib is using gangsterism to shut Mahathir's mouth".
"I have condemned what took place but wait for police to conclude investigations before you start pointing fingers", Sports Minister Khairy Jamaluddin tweeted.
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Trump expressed hope that the US would not have to use this "power", but remained confident in the strength of the country. The United States and North Korea have repeatedly exchanged hard-line rhetoric, as if to show no hesitation to go to war.
The town hall meeting was aimed at highlighting a major financial scandal that has ensnared Prime Minister Najib Razak, and which has spurred Mahathir, 92, into coming out of retirement to take on his ex-protege.
Mahathir has been spearheading calls for Najib to resign over a multibillion-dollar scandal involving indebted state fund 1MDB, which is being investigated in several countries for money laundering.
Experts blame racial rhetoric that has escalated in recent months following Mahathir's move to join the opposition.
Before the violence erupted at Sunday's event, called "Nothing to Hide" and attended by some 2,000 people, Mahathir had repeated his criticisms of Najib over 1MDB.
RT America: Establishment plan to 'eject' Trump from White House
This is especially true since he has not been able to get support for the bulk of his agenda from Congress as he expected. He's got to move more to the mainstream and he's got to be more where the moderates are and the independents are ...
In fact, Tun Mahathir has set aside his past with Anwar. But the fund has been at the center of investigations in the US and other countries amid allegations of a global embezzlement and money-laundering scheme.