A police volunteer was moderately-seriously injured in a hit-and-run accident in Rosh Ha'ayin Wednesday morning. The man was hit near an industrial zone in the city. Police are searching for the offending driver. The man arrived at the scene following a report of an oil-spill on the road, and the driver that hit him skidded on the oil and momentarily lost control of the vehicle. Magen David Adom paramedics took the man to Beilinson Hospital in Petah Tikva. The incident is the second of its kind in less than a week. Last Saturday, a police officer was moderately hurt when a motorcyclist hit him powerfully. The police officer was standing at a roadblock on a street between Bat Yam and Jaffa and signaled to the motorcyclist to stop, but the driver, according to witnesses, "didn't seem like he did not see the cop's signal, but like someone who really intended to run him over." On Wednesday, five suspects were arrested in connection with the incident. They were held on neglecting a wounded man, obstruction of a police investigation and withholding evidence. One of the men is suspected of attempted murder. Later on Wednesday, the Rishon Lezion Magistrate's Court extended the suspects remand by five days. Israel Radio reported that the chief suspect ran over the police officer because he was driving without a license and was afraid of being caught.