Josh Duhamel, apl.de.ap, and Vice Ganda are just some of the celebrities who offered their prayers for the victims of the attack. Photos from Instagram

Hollywood actor Josh Duhamel joined local celebrities in offering their prayers for those who died after a lone gunman started a fire inside Resorts World Manila Friday night, tweeting: "Prayers for my Pinoy friends."

A fan of Manny Pacquiao, Duhamel, who has also been vocal about his sweet spot for Filipinos, was among those who reacted to the fatal incident which has left over 30 people dead, mostly due to suffocation.

Prayers for my Pinoy friends. https://t.co/I4e7Dvr4UT — Josh Duhamel (@joshduhamel) June 1, 2017

Another is apl.de.ap, a Filipino-American best known for being a member of Black Eyed Peas, who said: "Stop ruining the country that I love."

Ruffa Gutierrez, in her tweets, said that her mother, talent manager Annabelle Rama, had just left the upscale casino resort before the attack happened.

My prayers & thoughts go out to everyone at #ResortsWorldManila 🙏🏼 so scary! Why r there so many evil people in this world??😢💔 #heartbroken — Ruffa Gutierrez (@iloveruffag) June 1, 2017

Just got off the phone w/ @annabellerama2 who told me that she had just left #Resortsworld when the attack happened!😵She sends her prayers. — Ruffa Gutierrez (@iloveruffag) June 2, 2017

Mom @annabellerama2 was at #Resortsworld to pick up #PAWPatrol tickets for Zion & Aria and decided to skip buffet dinner to go home. — Ruffa Gutierrez (@iloveruffag) June 2, 2017

When @annabellerama2 got home, she received frantic calls from friends who thought we was still at the lobby. 😵 #ResortsWorldAttack — Ruffa Gutierrez (@iloveruffag) June 2, 2017

Comedian Vice Ganda, singer Christian Bautista, director Mae Cruz Alviar, and television host Bianca Gonzalez also took to Twitter to express shock.

I think it is best for everyone to just stay home right now. Be safe. God bless us. — jose marie viceral (@vicegandako) June 1, 2017

There's still a lot of reasons to be grateful for. Let's just continue spreading LOVE no matter what. GANDAng tanghali. — jose marie viceral (@vicegandako) June 2, 2017

Lets not spread fear. Let's spread a calm vigilance with whatever is happening. Fill the heavens with prayer,fill the land with hope. — Christian Bautista (@xtianbautista) June 2, 2017

Ang gulo gulo na. 😥😔 God bless our country. — Bianca Gonzalez (@iamsuperbianca) June 2, 2017

11 of those defending the country in #Marawi yesterday, 30+ in RW last night. God bless their souls and comfort their loved ones. 😔🙏 — Bianca Gonzalez (@iamsuperbianca) June 2, 2017

Karylle, Coleen Garcia, Chito Miranda, Ogie Alcasid, and Dingdong Dantes also joined in the chorus of prayers for the victims.

Omg!!! Praying for everyone's safety :( https://t.co/urAYYa4mlG — Coleen Ortega Garcia (@coleengarcia) June 1, 2017

Dasal tayo lahat ❤ https://t.co/dWPpLZvUop — Alfonso Miranda Jr (@chitomirandajr) June 1, 2017

Please stay safe everyone. Praying for all — karylletatlonghari (@anakarylle) June 1, 2017

Dear Lord, protect us from all evil. Do not let fear overwhelm us but instead help us to besteadfast In our faith in your amazing power. — ogie alcasid (@ogiealcasid) June 2, 2017

I just landed here in SFO and heard about another tragedy that happened in Resort's World. I mourn with all the families of our victims-- — Dingdong Dantes (@iamdongdantes) June 2, 2017

-- from our fallen soldiers in Mindanao, to the civilian casualties. Let us all be vigilant and and not add to the mayhem by spreading — Dingdong Dantes (@iamdongdantes) June 2, 2017

unverified news. May God bless us all. — Dingdong Dantes (@iamdongdantes) June 2, 2017

The gunman reportedly brought gasoline in soft drink bottles, which he then used to set fire to casino tables inside the complex, a police official said Friday.

National Capital Region Police Office chief Director Oscar Albayalde said the unidentified gunmen parked his car inside Resorts World, and then went straight to the casino, carrying a long firearm, ammunition and a bottle of gasoline.