Auto sales in Puerto Rico continued their downward trend in Spetember, when 8.1 percent fewer vehicles went to new owners, marking the eighth consecutive month of this year showing negative results, according to numbers released Thursday by the United Automobile Importers Group.

Puerto Rico automakers sold a meager 6,324 units last month, representing a 21.3 percent year-over-year drop and marking the sixth consecutive month the sector has seen a reduction in activity, the United Automobile Importers Group said Tuesday.

The United Automobile Importers Group (known as GUIA for its initials in Spanish), raised a red flag Thursday over the unstoppable slide Puerto Rico’s auto sales have gone into over the past five months, a trend upheld in June, when activity was down 15.8 percent.