A performance by Indonesian boy band Seventeen turned tragic when the deadly tsunami that hit Indonesia’s Sunda Strait slammed into the group while they performed on a stage set up on a beach.

In a press release, the band confirmed that bassist M. Awal Purbani — known to fans as Bani — and road manager Oki Wijaya lost their lives.

Lead singer Riefian Fajarsyah mourned their loss in a tearful video, shared on Instagram, reports CNN.

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“I just want to say that our bass player Bani and our manager Oki Wijaya passed away,” he said, sobbing.

At the time, three other band members, in addition to Fajarsyah’s wife, Dylan Sahara, remained missing.

“Please pray that we can find Andi, Herman and Ujang and my wife,” he continued.

Fajarsyah also posted a photo of him and his wife sharing a kiss in Paris, alongside the caption, “Today is your birthday, I am wishing that you come home my love.”

The rest of the band members, including Fajarsyah, have minor injuries, “but we are fine,” he said.

In another post, he asked fans to send their prayers.

In a subsequent post, the singer acknowledged that Sahara had been found dead, as had missing band members guitarist Herman Sikumbang and drummer Windu Andi Darmawan.

“Thank God I met my wife,” he wrote, adding that he was “proud and honoured” to have played alongside his late band mates.

In an earlier post, he shared a photo of Sahara, writing, “I really love you, my dear wife.”

As the Jakarta Post reports, Seventeen was performing at an event held by state electricity company PLN when the tsunami hit the stage on Tanjung Lesung beach, at approximately 9.30 p.m.

The members of the band, crew and Sahara were swept out to sea when the tsunami struck; Fajarsyah was among the lucky ones who was able to swim back to shore.

So far, 373 people have been confirmed dead due to the devastating tsunami, while more than 1,400 have been injured.