Miley Cyrus is looking for ways to help those affected by the terror attacks in Belgium while other celebrities have sent prayers to those in the city.

Around 34 people have been reported dead and more than a hundred were left injured in two explosions at Brussels international airport and a further blast at the Maelbeek metro station on Tuesday morning.

Many celebrities have taken to social media to send prayers to those in the city, including Miley, who tells her fans she is working with members of her Happy Hippie Foundation to help those impacted.

"My (heart) breaks for Brussels today," she writes on Instagram.


@happyhippiefdn regram!!!!!!

A post shared by Miley Cyrus (@mileycyrus) on

"My heart breaks for the world today.... When will this end, and the love begin..... This isn't the planet I wanna live on... NOTHING in the world matters but giving love to others! It's what we need more than anything else! MORE LOVE LESS EVIL!!!

"Talking with @happyhippiefdn now about what we can do to be there for our friends in Brussels ... Stay tuned on how to get involved... today we must focus on what unites us .... not divides us."

Miley, 23, founded the Happy Hippie Foundation in 2014. The non-profit organisation aims to help vulnerable youths, including the homeless and those in the lesbian, gay, bisexual and transgender (LGBT) community.

Many other stars took to Twitter to react to the horror.

Culture Club star Boy George wrote, "My thoughts and prayers for Brussels this morning and for anyone killed or hurt in these terrible attacks and the families and loved ones," and similarly 5 Seconds of Summer star Michael Clifford posted, "watching this news going on in Brussels makes me so sad. could've been anyone you love in that airport/metro. all of my love and prayers."

The Brussels attacks comes just four days after Salah Abdeslam, a suspect in the November, 2015 Paris terror attacks, was arrested in Belgium.

According to reports, one of the Brussels airport explosions was caused by a suicide bomber.

Meanwhile Mariah Carey has been warned not to perform at her scheduled concert in Brussels, Belgium, following the terror attacks.

The diva is due to take the stage at Forest National in Brussels on Sunday but Carey's security team is "strongly against" the show in light of the bombings, TMZ reports.

According to TMZ, security told the singer the venue could be a target, given she's a famous singer engaged to a billionaire, Australian businessman James Packer.

While a decision is yet to be made, the star's team are also concerned the singer and her team won't be able to enter Brussels as the airport remains closed.

The show is part of Carey's Sweet Sweet Fantasy Tour that began in March in Glasgow and winds up in Johannesburg in May.

The scheduled Brussels concert is particularly special to the We Belong Together singer, falling on the same date as her 45th birthday.

Aussie rapper Iggy Azalea also postponed an appearance on a US breakfast show.

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The star was billed to debut her new video Team on Good Morning America on Tuesday, but the segment was scrapped in favour of incoming news.

Explaining the circumstances to fans on Twitter, the Fancy hitmaker wrote:

Iggy was reportedly in the studio in New York City when the news of the latest terrorist attacks on Europe first came through.