At least five people were killed and five others injured when a blast went off near a political rally in Pakistan's southwest Balochistan province on Tuesday, official sources said. Pakistani court sentences former Prime Minister Imran Khan to 10 years for revealing state secrets The incident happened around 5:35 p.m. local time (1235 GMT) when explosive materials fixed at a motorbike exploded in Sibi district of the province, the sources told Xinhua.