CAIRO, July 29 (Xinhua) -- Nine people were killed on Sunday and 18 injured in a collision in Egypt's Suez Canal city of Port Said.

A bus collided with a trailer near the toll station in southern Port Said, state-run MENA news agency reported.

The wounded were all workers of one of the factories in city, MENA said.

Ten ambulances rushed to the scene to carry the wounded and an investigation was launched into the accident.

Egypt suffers a high rate of traffic accidents that kill thousands of people every year due to lack of highway monitoring systems, inadequate road maintenance and negligence of traffic rules.

Traffic accidents in Egypt declined by 24.5 percent in 2017 to 11,100 cases compared to about 14,700 in 2016, according to a report from the country's Central Agency for Public Mobilization and Statistics released in March.

The report pointed out that road accidents left 3,700 people dead and 14,000 injured in 2017 while killing 5,300 and wounding 18,600 in 2016.