Officials later determined the possible explosives were actually a movie prop.
The passengers were stranded in 90-degree heat until emergency crews arrived.
Four homes in Jurupa Valley were evacuated Saturday when a car crash severed a gas line.
Residents in the Colby Fire burn-area Friday were under mandatory evacuation orders as a storm moved through the foothill communities.
A strip mall and two apartment buildings had to be evacuated in Stanton on Sunday after a hit-and-run driver plowed into a gas meter.
A person was in custody Friday after Pierce College was evacuated for threats of a suicidal man with a gun.
Several homes were burning Wednesday and mandatory evacuation orders were in effect for thousands of residents due to a fast-growing brush fire in north San Diego County.
Authorities have evacuated hundreds of people from a Pomona office building and taken eight to the hospital after a chemical made people cough and their eyes water.
Classes at Alhambra High School were back in session Tuesday after reports of a gasoline smell forced students to evacuate, authorities said.
All of the customers were given vouchers for a future return.
Several North Hollywood residents had to be evacuated from their apartment complex Monday night because a tree was leaning against their building.
A mandatory evacuation order has been issued Friday for all residents on Ridge View Drive in Azusa.
Officials determined the spill would require an emergency evacuation of the building.
An oil derrick buckled Monday in Huntington Beach, which has forced some residents to evacuate from their homes.
Authorities have arrested a 17-year-old Temple City High School student for making false bomb threats.