A former Cleveland school bus driver accused of holding three young women captive for a decade and subjecting them to torture, such as chaining them to a pole, pleaded not guilty on Wednesday to more than 300 criminal charges including rape, kidnapping and murder.

South Africans prayed for Nelson Mandela’s recovery on Sunday as the 94-year-old former president spent a second day in hospital with a recurring lung infection.

Jury selection begins on Monday in the murder trial of George Zimmerman, who shot and killed unarmed black teenager Trayvon Martin in 2012 and then famously walked free for 44 days, triggering nationwide protests and calls for his arrest.

The gunman who killed four people during a shooting rampage in Santa Monica before he was slain by police at a community college in the California seaside town was once a student there and had a brush with the law several years ago as a teenager, police said on Saturday.

Former South African president and anti-apartheid hero Nelson Mandela was in a “serious but stable” condition on Saturday after being taken to hospital with a recurrence of a lung infection, the government said.

The Ohio man accused of kidnapping three women and holding them captive in his Cleveland home for a decade will plead “not guilty” to several hundred charges that also include rape and aggravated murder, his attorney said on Saturday.

Six people were killed and 14 were injured on Wednesday when a four-story building under demolition collapsed in downtown Philadelphia, burying a neighboring thrift store in concrete and debris, officials said.

Volunteers piled up sandbags to keep a swollen river from overwhelming the Czech capital’s historic centre on Monday after floods across central Europe forced factories to close, drove thousands from their homes and killed at least seven people.

Firefighting in Detroit is a whole different world.

Two freight trains collided at a rail intersection in rural Missouri on Saturday, triggering the collapse of a highway overpass when at least a dozen rail cars derailed and struck a support pillar, authorities said.

More than 2,000 runners finished the Boston Marathon on Saturday, more than a month after the race was cut short because of the April 15 bombings.

A Syrian-born Islamist cleric who taught one of the men accused of hacking to death an off-duty British soldier on a London street praised the attack for its “courage” and said Muslims would see it as a strike on a military target.

British police arrested two more people on Thursday in a hunt for accomplices of two British men of Nigerian descent accused of hacking a soldier to death on a London street in revenge for wars in Muslim countries.

An FBI agent shot and killed a man of Chechen origin who turned violent while being questioned on Wednesday about his connection to Tamerlan Tsarnaev, one of two Chechen brothers suspected of carrying out the Boston Marathon bombings.

Rescue workers with sniffer dogs and searchlights picked through the wreckage of a massive tornado to ensure no survivors remained buried in the rubble of primary schools, houses and buildings in an Oklahoma City suburb.

Emergency workers pulled more than 100 survivors from the rubble of homes, schools and a hospital in an Oklahoma town hit by a powerful tornado, and officials lowered the death toll from the storm to 24, including nine children.

A huge tornado with winds of up to 320 kph devastated the Oklahoma City suburb of Moore on Monday, ripping up at least two elementary schools and a hospital and leaving a wake of tangled wreckage.

A 21-year-old university student who was taken hostage in her apartment and then shot to death during a police standoff with an armed robber on New York’s Long Island was killed by a bullet fired from an officer’s gun, investigators said on Sunday.

Accused Boston Marathon bomber Dzhokhar Tsarnaev left a handwritten message describing the attack as retribution for U.S. wars in Muslim countries, CBS News reported Thursday.