March 28 (Reuters) - U.S. safety regulators said they had closed an investigation into electric sports car maker Tesla Motors Inc's popular Model S sedans.
The U.S. National Highway Traffic Safety Administration began investigations into the company's Model S luxury electric cars in November after three cars caught fire.
"A defect trend has not been identified," the regulator said on its website. (http://r.reuters.com/tyn97v)
"The closing of the investigation does not constitute a finding by NHTSA that a safety-related defect does not exist." (Reporting by Sagarika Jaisinghani in Bangalore; Editing by Kirti Pandey)