ISLAMABAD, July 20 (Xinhua) -- At least 10 people were killed and over 60 others injured in two separate road accidents in Pakistan's southern Sindh province on Sunday, said police officials.

One of the accidents occurred in Thatta district where a bus carrying picnickers overturned due to over-speeding, resulting in six deaths and over 20 injuries, police sources from the district told Xinhua.

Separately, a passenger bus travelling from the southern port city of Karachi to northwest Mansehra district overturned on the National Highway in Khairpur district, killing four people and wounding 40 others, including women and children. ■