QUETTA, Pakistan, July 27 (Reuters) - Gunmen killed a government official in the southwest Pakistani province of Baluchistan on Friday.

Raziq Bugti, a spokesman for the provincial government, was shot dead in the city of Quetta as he drove home.

Police were unsure if it was related to a wave of violence sweeping Pakistan since the army's storming of a radical mosque in Islamabad this month.

"It is too early to say what are the motives behind this attack," city police chief Rahu Khan Brohi told Reuters. "It could be part of the ongoing series of terrorist activities, but it's too early to say. We are investigating."

Pakistan was hit by a wave of bomb attacks after the army's assault on a militant stronghold in the Lal Masjid or Red Mosque complex in the capital.

Though most attacks were carried out in North West Frontier Province, Baluchistan has also been hit.

At least 30 people were killed last week when a car bomber, apparently targeting a vehicle carrying Chinese engineers, rammed a van carrying a police escort in the southern town of Hub.

The Chinese were unhurt, but all seven policemen in the van and 23 bystanders were killed, while another 28 were wounded.

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