HOUSTON CHRONICLE: Suspect arrested trying to plant bomb at Confederate statue in Houston's Hermann Park pic.twitter.com/LXC2KB7M3w

Chron.com reports:

A Houston man has been arrested on allegations he tried to plant explosives at the statue of Confederate officer Richard Dowling in Hermann Park, according to high-level law enforcement officials familiar with the investigation.

When confronted Saturday night in the park, the man tried to drink the liquid explosives, one of the sources said.

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The man was not identified by name but the sources said he had previously been convicted in 2014 and given five years probation for storing explosives.

The man was arrested about 11 p.m. Saturday in the park, a source said, following a day of protests that drew hundreds of people to Sam Houston Park protesting a Spirit of the Confederacy statue. The Saturday event also drew counter-protesters.

The details emerged as authorities evacuated a block in a Museum District neighborhood near Rice University Monday after finding hazardous materials inside of a house.

Residents living on Albans Road, between Hazard and Wilton streets, left their homes about 10 a.m., according to an emergency alert from the city of Houston.

The alert warned residents that disposing of the material could cause loud noises, smoke and damage to nearby property.