Noida (UP): Five people were arrested and nearly a dozen vehicles impounded across Noida and Greater Noida on Tuesday over alleged violation of the curbs imposed due to the Covid-19 outbreak, Gautam Buddh Nagar police said.Also, owners of more than 1,800 vehicles were issued challans for similar violations till Monday night across the district, which has so far recorded 6,101 positive cases of Covid-19 including 43 deaths, according to official figures.Criminal Procedure Code (CrPC) Section 144, which bars assembly of more than four persons, is in force in Gautam Buddh Nagar."Three FIRs were registered and five people arrested for violating the Covid-19 curbs.