URUMQI - Three people were killed and two injured in three explosions in northwest China's Xinjiang Uygur autonomous region Friday, local authorities said.

Two explosions took place at a hair salon and a vegetable market in the county seat of Xinhe in the Aksu prefecture at about 6:40 pm, killing one person and injured two, the region's publicity department said in a statement.

Shortly after the explosions, police arrested three suspects and later a suspect vehicle exploded itself while being besieged by police and two people inside were killed.

The injured have been sent to hospital.

An investigation into the explosions is underway.

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