New Delhi, June 16 -- Officials in Brazil on Monday were inspecting the site of a crash in which six people were killed Sunday, after two helicopters collided midair over a suburb of Rio de Janeiro.

American singer Oliver Tree was among those listed on the passenger list filed with aviation authorities for one of the helicopters that crashed into the parking lot of a car dealership, although police did not yet confirm his body was found in the crash.

Police confirmed the death of Gaspar Prim Diaz - an Argentine content creator known as Gaspi with more than 2.8 million followers on YouTube - another Argentine Lucas Vignale and three Brazilians - Lucas Brito, Charles Marsillac and Alexandre Souza. The body of one foreigner was not yet ide...