Juan Guaidó claims Venezuelan agents arrested his chief of staff

Venezuelan opposition leader says Roberto Marrero was 'kidnapped' before dawn

The Venezuelan opposition leader, Juan Guaido, has said intelligence agents arrested his chief of staff after a pre-dawn raid, signalling that President Nicolis Maduro may be cracking down on the opposition's challenge to his rule.

Guaido invoked the constitution in January to assume the interim presidency after declaring Maduro's 2018 re-election a fraud, and he has been recognised by dozens of western nations as the country's legitimate leader.