Large number of people could be seen lined up at bus stops across the city.
The All Pakistan Transport Owners Federation also announced to raise fares across the country.
General Secretary Arshad Niazi said inter-city bus fares have been hiked after the government's decision to increase petroleum prices.
The transporters in Karachi threatened to continue the strike until the government meets their demands.
Meanwhile, transporters in Khyber-Pakhtunkhwa also announced an increase of about 10 per cent in bus fares.
COMMENTS
Comments are moderated and generally will be posted if they are on-topic and not abusive.
For more information, please see our Comments FAQ