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.
On Sunday they went to the farm house to search for the missing man but could not found him, they then barricaded roads. On Tuesday, roads were barricaded and no one was allowed to leave or enter Majakaneng.
Mokgwabone said the police were working hard to investigate and get to the bottom of the matter.
"However, it is clear now that criminals have started to damage properties and targeting passing motorists whose vehicles are pelted with stones. The community is warned to refrain from criminal acts as that will not be tolerated and that drastic action will be taken against anyone who commits crime."
He said anyone with information that may assist in the matter should contact the investigation team on 082 416 0767.
Meanwhile the DA called for calm in the area and urged the police provide a feedback to the community.
"I have contacted the Madibeng Cluster Commander, Brigadier Johan Marx, who confirmed that the SAPS are investigating this serious matter," said Leon Basson, Constituency Head in Madibeng.
"The community is frustrated because they feel that nothing is happening. The DA therefore urges the police to urgently provide feedback to the community. If all allegations are true, it is imperative that the police arrest the perpetrator as soon as possible and that the law takes its course. At the same time, we call for calm in the area. Violence has never, and will never, solve the serious problems we face."