Sir: On previous Thursday, a bus was carrying 49 passengers which crashed on the way and 13 passengers were killed and 33 others were injured near Swat. The driver was talking to someone on mobile phone while overtaking a Mazda truck on motorway. A call killed 13 people which is really heartbreaking. I request everyone in Pakistan to avoid cell phone during driving so that they would be safe because it is not the only accident because of a phone call rather many such incidents take place because of a call which caught our concentration. WAQAR MOOSA Kech