Brits - Two trucks and a van were burnt during a protest in Majakaneng, south of Brits, North West police said on Tuesday.
The protest followed allegations that a local farmer shot a 24-year-old man for stealing oranges at his farm.
"Police are requesting members of the community in and around Majakaneng as well as Mooinooi to assist with any information that may shed light on a missing person enquiry and attempted murder case registered at Mooinooi police station," said Brigadier Sabata Mokgwabone.
"The cases came as a result of an incident in which a 24-year-old man was allegedly shot and injured by a farmer on Wednesday, 02 August 2017 after he and two other men were found stealing from his farm. The 24-year-old man was never seen since that day and the incident was also reported to the police two days later."
The N4 highway between Rustenburg and Pretoria and the old Pretoria road were blocked on Monday and Tuesday, protesters pelted passing vehicles with stones.