Up to four planes were forced to make emergency landings in Chile and Peru on Aug. 16 due to bomb threats issued to Chilean authorities, reports say.

The planes were operated by LATAM Airlines and Sky, a low-cost Chilean airline, the Chilean Civil Aviation Authority said, according to Reuters.

The planes were undergoing checks of passengers, baggage, and their cabins and holds by police and airport security.

A LATAM Airlines passenger plane that departed Peru’s capital of Lima for Santiago, Chile, on Aug. 16 was forced to land at Pisco International Airport in southern Peru due to a bomb threat received by Chilean authorities, Peru’s Transportation Ministry said.

No one was injured on LATAM flight 2369 and a team for deactivating explosives was notified, the ministry said.

“Right now the situation is under control,” it added in a statement on Twitter.

According to The Associated Press, two Sky Airlines planes flying on-route to Rosario, Argentina, and the northern Chilean city of Calama returned to Santiago without incident.

The three planes were inspected and no explosives were found on board, according to Chilean authorities, said the Associated Press.

Sky Airlines in a statement posted to twitter said that three flights—162, 524 and 166—were affected by bomb threats.

“We activated all security protocols to save and activate our passenger protection plan,” a translation of the statement read.

Reuters contributed to this report.

From NTD.tv