MANILA – President Rodrigo Duterte's aide on Sunday said there was nothing unusual about the second landing of a Chinese military plane in Davao City and added that those who were highlighting the landing were merely sowing intrigue.

A Philippine Air Force unit earlier confirmed the aircraft landed in in Davao Saturday afternoon.

• Another Chinese aircraft lands in Davao City to refuel, Air Force unit confirms

Special assistant to the President Bong Go said the Chinese military aircraft was “received, processed and cleared by relevant Philippine agencies” and was allowed "out of courtesy.”

"I think pangalawa na ito na nag refuel sa Davao, I think, kung meron man today. Di ko pa po nabalitaan," Go told reporters.

Magdalo Rep. Gary Alejano earlier criticized the latest landing of the Chinese plane as "unusual."

"We have no formal military agreements with China which makes landings like that unusual esp if high defense officials were not aware. On one hand, we have an existing visiting forces agreement with Australia & the US," Alejano posted on Twitter.

Go also said Alejano could ask military officials themselves if there was anything amiss about the landing of the Chinese military plane in Davao.

"Masyado niyong iniintriga yung gobyerno natin," Go said.

Defense Secretary Delfin Lorenzana was quoted by the government-run Philippine News Agency saying that it was the same Chinese aircraft that landed in Davao on June 8.