An overseas tip about an imminent bombing of the Metro Red Line’s Universal City station has forced federal and local law enforcement in Los Angeles to swiftly ramp up security across its sprawling transit system, authorities said Monday.

An anonymous man warned of a potential attack on Tuesday and provided the information on a tip line abroad, according to Deidre Fike, the assistant director in charge of the FBI's office in Los Angeles.

A firefighter who responded to a report of a gas leak Tuesday morning was killed in a house explosion shortly after authorities discovered what appeared to be a drug lab.

The Fire Department of New York confirmed the firefighter's death shortly after the Bronx explosion.

The mayor's office had tweeted that the mayor and fire commissioner were at the hospital.

Bombings in New York and New Jersey over the weekend -- as well as the discovery of several unexploded devices -- have led authorities to believe there may be a terror cell at work in those two states, law enforcement officials told CNN Monday.

And a manhunt is under way for 28-year-old Ahmad Khan Rahami after New York police identified him as a suspect in connection with the bombing Saturday night in New York's Chelsea neighborhood, which wounded 29 people.

The Department of Homeland Security (DHS) Science and Technology Directorate (S&T) recently awarded a 12-month project for $422,330 to JGW International Ltd. based in Reston, Virginia, to develop a universal operator control unit (OCU) system for four separate robotic platforms used for explosive ordnance disposal (EOD). In fall 2015, DHS S&T’s First Responders Group (FRG) requested proposals from vendors with rapid technology solutions to help solve critical capability gaps identified by first responders across the country.

Locusts came to fame as agents of destruction during the eighth plague of Egypt in the Bible, but some researchers envision a new occupation for the humble insects: cyborg bomb detectors.

Yes, you read that correctly. The Office of Naval Research has given Washington University in St. Louis associate biomedical engineering professor Baranidharan Raman and his team a $750,000, three-year grant to continue his research into turning ordinary locusts into military tools.