Devlin Barrett And Mark Berman The Washington Post

A man in Florida with a lengthy criminal record was arrested and charged Friday with sending 13 packages containing improvised explosive devices to high-profile figures across the country, authorities said.

The hunt for a serial mail bomber intensified Thursday as the number of suspected bombs rose to 10 and investigators appealed to the public for help in cracking a case that has put law enforcement officials and political leaders on high alert.

The discovery of five pipe bombs mailed to prominent Democrats, CNN and a liberal billionaire put the country on edge Wednesday and sent law enforcement officials scrambling to prevent any more packages from reaching their targets.

The Secret Service said Wednesday that it had intercepted packages containing "potential explosive devices" addressed to former secretary of state Hillary Clinton in New York and former president Barack Obama in Washington.

Federal authorities on Wednesday charged the 29-year-old Uzbek immigrant they say plowed a rented truck into people walking and cycling on a New York City bike path - killing eight - with providing support to a terrorist organization, alleging that he was inspired by the Islamic State to inflict mayhem and chose Halloween because he figured there w...

A man deliberately drove into bicyclists and pedestrians in a bike path in Lower Manhattan, killing at least eight people and injuring more than one dozen in an act of terrorism, New York City Mayor Bill de Blasio, D, said Tuesday.

Investigators trying to determine what sparked the deadliest mass shooting in modern U.S. history have found the massacre to be the work of a sophisticated planner with the means and desire to inflict unprecedented carnage.

Perched in his suite at a high-rise hotel overlooking the Vegas Strip, a 64-year-old retiree with no real criminal history and no known affiliations with terror groups rained bullets down into a crowd at a country music festival Sunday, killing at least 59 people and injuring hundreds more in the deadliest mass shooting in modern American history.

The FBI and local police are investigating a stabbing attack on an airport police officer in Flint, Michigan, as a possible act of terrorism, according to a law enforcement official familiar with the case.

A man in Florida with a lengthy criminal record was arrested and charged Friday with sending 13 packages containing improvised explosive devices to high-profile figures across the country, authorities said.

The hunt for a serial mail bomber intensified Thursday as the number of suspected bombs rose to 10 and investigators appealed to the public for help in cracking a case that has put law enforcement officials and political leaders on high alert.

The discovery of five pipe bombs mailed to prominent Democrats, CNN and a liberal billionaire put the country on edge Wednesday and sent law enforcement officials scrambling to prevent any more packages from reaching their targets.

The Secret Service said Wednesday that it had intercepted packages containing "potential explosive devices" addressed to former secretary of state Hillary Clinton in New York and former president Barack Obama in Washington.

Federal authorities on Wednesday charged the 29-year-old Uzbek immigrant they say plowed a rented truck into people walking and cycling on a New York City bike path - killing eight - with providing support to a terrorist organization, alleging that he was inspired by the Islamic State to inflict mayhem and chose Halloween because he figured there w...

A man deliberately drove into bicyclists and pedestrians in a bike path in Lower Manhattan, killing at least eight people and injuring more than one dozen in an act of terrorism, New York City Mayor Bill de Blasio, D, said Tuesday.

Investigators trying to determine what sparked the deadliest mass shooting in modern U.S. history have found the massacre to be the work of a sophisticated planner with the means and desire to inflict unprecedented carnage.

Perched in his suite at a high-rise hotel overlooking the Vegas Strip, a 64-year-old retiree with no real criminal history and no known affiliations with terror groups rained bullets down into a crowd at a country music festival Sunday, killing at least 59 people and injuring hundreds more in the deadliest mass shooting in modern American history.

The FBI and local police are investigating a stabbing attack on an airport police officer in Flint, Michigan, as a possible act of terrorism, according to a law enforcement official familiar with the case.