The Latest: Guaido: 'Maduro doesn't dare to jail me'

The Latest on the political crisis in Venezuela (all times local):

11:45 a.m.

Opposition leader Juan Guaido says the Venezuelan government is weak and doesn't "dare" to detain him.

Guaido spoke Thursday after intelligence agents staged an overnight raid and detained Roberto Marrero, his key aide.

The leader of the opposition-controlled National Assembly said "the chain of command" in the government of President Nicolas Maduro is broken.

In his words, "Maduro doesn't dare to jail me, or he's not in charge."

Maduro has described Guaido as a "puppet" in a U.S. scheme to overthrow him.

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11 a.m.

Masked security forces detained a key aide to Venezuelan opposition leader Juan Guaido in a raid on his home.

Lawyer Roberto Marrero was taken away by intelligence agents Thursday in an overnight operation that was promptly condemned by Guaido as well as U.S. Secretary of State Mike Pompeo, who called for his immediate release.

"We will hold accountable those involved," Pompeo tweeted.

The Venezuelan government had no immediate comment on Marrero's detention, which represented a sharp increase in police pressure on the opposition after a period of relative calm. Guaido had even said that the government was ignoring him in an attempt to sap the energy of the opposition.