PFLUGERVILLE, Texas -- Police announced an "all-clear" before 9 p.m. Wednesday for Pflugerville downtown residents to safely return to their homes after the area had been evacuated Wednesday.

"We understand that it was an inconvenience to evacuate, but it allowed authorities to fully investigate the scene and ensure the safety of the community," police said.

Authorities worked to remove homemade explosive materials from the Pflugerville home of the suspect behind Austin's recent explosions and forced residents within a five-block radius of his home to evacuate. Before the all clear, officials announced they would be shrinking that perimeter a few blocks from the railroad, Walnut and Second Street areas.

Mark Conditt, 23, of Pflugerville was found at a Round Rock hotel. When officers started to approach his vehicle, Conditt detonated a bomb and killed himself March 21, police said. His death follows a series of explosions in the Austin-area over the span of three weeks.

Agents with the FBI and ATF worked to remove and dispose of homemade explosive materials that were found at his home located at 403 Second Street in Pflugerville, authorities said. Authorities reported at a press conference Wednesday afternoon that no "completed" devices were found inside the home, but similar components of the previous devices were found in primarily one room of the home.

Authorities said they have been able to determine how each bomb was made. No motive in the Austin-area bombings has been uncovered yet in the investigation.

Residents are reminded to remain vigilant and call 9-1-1 if they see anything suspicious, as officials said there could be other devices out in the public.

Out of an abundance of caution, police initially evacuated residents within that perimeter of the home from North Railroad Avenue to City Park Road and north of West Pecan Street. Pflugerville City Hall was also closed. The public was advised to stay away from the area as agencies work.

Pflugerville Police Chief told the media that it would take several hours to process the scene and that all evacuated residents should stay away until 9 p.m. She said the library and recreation center was available to residents until 9 p.m. if they didn't have another place to go.

"Ladies and gentlemen, patience is going to have to work for us here," Pflugerville's police chief said. "We know everyone wants to go home, everyone wants to eat their dinner, but residents need to wait until the scene is cleared."

The FBI and ATF were working to "mitigate any potential hazards to nearby residents."

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