Toyota Motor Corp said on Thursday it will recall about 20,000 vehicles worldwide due to possible fuel leaks from a fuel delivery pipe in the engine, Reuters reported. Most of the affected vehicles are in the United States, Toyota said. Toyota Motor Sales USA said the recall involves vehicles with its 2GR-FE engine. It's affecting the 2015 model year Lexus RX, and four 2014 model year Toyota vehicles: Avalon, Camry, Highlander and Sienna. Lexus is Toyota's luxury brand.