Police have discovered a man with gunshot wounds after pulling over a ute during a random breath testing operation in Sydney’s west.

It’s understood a 27-year-old was in the front passenger seat of the ute in Merrylands, which was pulled over around 2.20am today.

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He had gunshot wounds to his stomach and groin.

He was moved to the ute’s tray before being treated by paramedics and taken to Westmead Hospital with non-life threatening injuries.

He is expected to have surgery later today.

Four other men who were in the ute were taken in for questioning.