The accident occurred at 12:30 pm in the afternoon when the duo were returning to their home after visiting a relative in Kathalbagan area of the city, he said.
Yunus was rushed to Bangladesh Medical Hospital in Uttara and later shifted to DMCH in the evening, where doctors declared him dead.
The body was sent to hospital morgue for autopsy, Bhuiyan said.
Alarming rate of road crashes
At least 484 people were killed and 673 injured in 427 road accidents throughout the country in January this year.
The rate of accident rose 25.58% and fatalities 8.76% compared to the same period of last year, according to Road Safety Foundation (RSF).
At least 445 lives were lost in 340 road accidents in January last year, said the RSF on Saturday.
Between January 1 and January 31 of this year, 168 people were killed in 159 motorcycle accidents – 37.23% of total road accidents.
And 53 drivers and helpers were killed during the same period of this year – 10.95% of total fatalities.