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A US Army veteran who was allegedly plotting a large-scale terror attack near Los Angeles as revenge for the recent mass shootings in Christchurch, New Zealand, has been arrested, authorities said Monday, according to AFP.

Mark Steven Domingo, 26, who had combat experience in Afghanistan and professed to be a Muslim, faces federal terror-related charges for plotting to detonate an improvised explosive device (IED) at a white nationalist rally in Long Beach this past weekend with the aim of causing mass casualties, officials said.

He was arrested on Friday after receiving what he thought was a live bomb that was delivered by an undercover agent.

Court documents say that, in online posts and conversations with an FBI source, Domingo expressed support for violent jihad and aspired to become a martyr by seeking retribution for attacks against Muslims.

After considering various attacks, including targeting Jews, churches, and police officers, Domingo decided to detonate an IED at the rally, authorities said, according to AFP.

Since 2013, American prosecutors have charged hundreds of individuals with Islamic State (ISIS)-related crimes.

Earlier this month, a Maryland man was charged with stealing a rental truck that he wanted to use to kill pedestrians at National Harbor in Maryland, in an attack similar to the 2016 truck terror attack in Nice, France.

In January, a man suspected of planning an attack on a synagogue in Ohio was indicted on charges of targeting a Jewish house of worship, as well as with attempting to provide material support to the ISIS, attempting to commit a hate crime and possessing firearms in furtherance of a crime of violence.