At least one person reportedly injured in the firing near Zainab market succumbed to his wounds at the hospital after the violence.
Two other people sustained injuries during the violent attacks in which around 2000 party workers participated.
The workers also caused damage to shops located in Zainab market in the Saddar area of the city forcing owners to close.
Traffic jams were witnessed in areas surrounding I.I.Chundrigar road, while the road leading to CM House was also shut.
Windows of several vehicles broke due to stone-pelting by MQM workers. More than one dozen people were arrested by the authorities.
After the attacks, Prime Minister Nawaz Sharif while taking notice said that those responsible must be arrested as soon as possible.
He said that adequate security must be provided to journalists in Karachi.
Chief Minister Sindh Murad Ali Shah said that strict action will be taken against those involved in attacks.
“Would do whatever I can to secure the lives of citizens of the city and province”, he added.
He further said that whoever was involved in the attacks will not be spared.
Speaking to a private TV channel, Federal Information Minister Pervaiz Rasheed while condemning the attacks on TV channels, said that the miscreants would be brought to justice.
Director General (DG) Rangers Major General Bilal Akbar, after the incident, ordered strict and swift action against miscreants who attacked the offices of Geo, ARY, and Samaa.
“Nobody would be allowed to disrupt the peace of the city,” said the DG Rangers, according to a press release from the paramilitary law enforcement force.
Governor Sindh Dr Ishratul Ebad said that the peace of the city would be maintained at all cost, adding that stern action will be taken against miscreants as per law.
DG Rangers said that security of media institutions and journalists would be ensured.
The 2018 Boao Forum for Asia (BFA) annual conference is scheduled for April 8 to 11 in Boao, Hainan Province. The forum will be themed "An Open and Innovative Asia for a World of Greater Prosperity."
— The Daily Mail - People's Daily