A Sub-Inspector of Police, who was riding the two-wheeler, and the 'burglar', riding pillion, were seriously injured when a speeding unidentified four-wheeler hit the two-wheeler from behind at Kazhiyappanallur, they said.
SI Subramanian and the accused had been admitted to government hospitals in Thanjavur and Mayiladuthurai respectively, police said.
After taking the accused into custody, the three were returning to the police station in the same motorcycle when the mishap occurred.
Police said a special team had been formed to identify the vehicle that caused the accident.
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