BTS played its first concerts in Peru last week, and about 151,500 fans came out to see the group over three sold-out nights in Lima.

The shows at Estadio San Marcos on Oct. 7, 9 and 10 were part of the group's "Arirang" world tour, The Korea Herald reported, citing the group's agency. The Lima stop was first planned as two concerts, but Big Hit Music added a third date because of demand.

Fans packed the area around the stadium for days. Star News reported that a line more than 1 kilometer long formed on the first day, and some fans spent the night outside to get good spots. On Oct. 10, when the temperature reached 28 degrees Celsius, firefighters sprayed water on fans waiting behind metal fences to cool them down after some became dehydrated or dizzy.

Lima's mayor said about 1,000 police officers and about 1,000 city staff worked each concert on traffic, cleaning and safety, according to Star News. The city collected 20 tons of trash after the first show alone.

The concerts were expected to bring money to the city as well. Peru's tourism ministry estimated that more than 50,000 visitors would travel to Lima and generate around $18.7 million in tourism activity. The Lima Chamber of Commerce gave a broader estimate of up to $58.4 million, counting spending on hotels, food, transportation and merchandise, The Korea Herald reported.

On stage, the members spoke to the crowd in Spanish. RM also responded to criticism of a post asking fans not to gather outside the group's hotel. "When have we ever divided people by nationality or continent?" he said, according to The Korea Herald.

BTS moves on to Santiago, Chile, this week before shows in Buenos Aires and Sao Paulo.

What we know: BTS drew about 151,500 fans to three sold-out shows in Lima, its first concerts in Peru.
What we don't: How much the concerts actually added to Lima's economy, since the figures so far are estimates.