Metro Manila (CNN Philippines, July 24) — President Ferdinand Marcos Jr.’s mother former first lady Imelda Marcos will skip his second State of the Nation Address (SONA) on Monday, while his predecessor Rodrigo Duterte is also unlikely to attend the event.

Sen. Imee Marcos, the sister of the president, said their mother will not be at the SONA due to health concerns.

“Gustong pumunta pero pinagbabawalan pa ng doctor kasi maraming tao,” she said on the sidelines of the resumption of the Senate’s session on Monday.

[She wanted to go but her doctors have advised against it because there will be too many people.]

Sen. Christopher “Bong” Go, meanwhile, also said that Duterte has just arrived from China and is currently in Davao.

“Hindi ata. Hindi ko po alam. Galing po siya sa China so medyo pagod,” Go told reporters when asked if Duterte will attend.

[Translation: I think he will not attend. I’m not sure. He just came from China so he’s a bit tired.]

Last week, Duterte met with Chinese President Xi Jinping in Beijing. The Department of Foreign Affairs said it does not have official information on the former president’s China visit.

READ: Marcos hopes ex-Pres. Duterte will disclose details of Beijing trip

Marcos is set to deliver his second SONA in the afternoon.

Check out live updates regarding the chief executive’s SONA and related events on our liveblog.

CNN Philippines Correspondent Eimor Santos contributed to this report.