At least 30 people are killed and 55 injured when Israeli artillery shells land near a United Nations-run school in Gaza, UN officials say.

Any cease-fire in the Gaza conflict will require "clear and definitive action" to halt the smuggling of weapons and money into the Hamas-ruled Palestinian territory, former British Prime Minister Tony Blair said Tuesday.

Three Israeli artillery shells struck near the perimeter of a U.N. school in northern Gaza on Tuesday, killing at least 30 people and wounding 55, a United Nations official said. The Israeli military said Hamas militants had fired mortar shells at Israeli forces, prompting return fire, according to an initial investigation.

A leading Zimbabwean human rights activist must remain in custody until the Supreme Court decides whether the charges against her are valid, a judge ruled Tuesday.

John Travolta and Kelly Preston have returned to Ocala, Florida, with the remains of their teenage son, a family friend told CNN on Tuesday.

The new US Congress opens amid a row over the man chosen to fill Barack Obama's vacant Senate seat.

Far more civilians than Hamas fighters are arriving for treatment of war wounds at Gaza's main hospital as Israel's military incursion into the territory continues, two doctors say.

Several European countries said Tuesday their supply of natural gas from Russia had been cut or reduced amid a dispute over payments between Russia and Ukraine.

Renowned Nigerian writer and novelist Elechi Amadi has been kidnapped by gunmen in the Niger Delta region, say officials.

Holders Tottenham host Championship side Burnley in the first leg of their Carling Cup semi-final.

When Apple vice president Philip Schiller takes the stage here Tuesday morning for the keynote address at the Macworld Conference & Expo, he'll face a good-news, bad-news scenario.

Apple has announced at Macworld that music on its iTunes store will now be DRM free.

Obama faces a tough decision on detention policy at the U.S. prison at Bagram

Several EU countries report major disruption to their gas supplies from Russia as Moscow accuses Ukraine of shutting pipelines.

As a candidate, Barack Obama promoted hybrid cars.

German billionaire Adolf Merckle commits suicide after his business empire runs into trouble in the global economic slowdown.

Very bad, if inevitable, news from Gaza today: the Israelis accidently hit a UN school, killing at least 30 children. This will, no doubt, increase international outrage.

In a recent editorial in Nature, a group of bioethicists argue for using stimulants to enhance cognitive performance

Guitarist Ron Asheton, who helped found Iggy Pop's band The Stooges, is found dead at his home in Michigan.