The reputed head of one of Mexico's most violent drug cartels has appeared in a California federal court, three days after he was extradited to the United States on drug trafficking and other charges.

Security was tight as Benjamin Arellano Felix went before a judge in San Diego Monday to plead not guilty to the charges against him. Authorities say Arellano Felix heads the cartel bearing his last name. He is one of the highest-profile cartel members extradited under the administration of Mexican President Felipe Calderon.

The European Union's anti-piracy force says Somali pirates have released an Indonesian ship after holding it for 46 days.

The EU said pirates released the bulk carrier MV Sinar Kudus on Sunday, but it did not say if a ransom was paid. The statement added the vessel sailed to a safe port.

About 50 pirates captured the carrier in the Somali basin on March 16, as it was traveling from Singapore to Egypt. Officials say pirates later used the ship in a failed attempt to seize a Liberian-flagged vessel.

Mexican police have confiscated a large weapons cache stashed in a hidden room behind the walls of a home gym in a house in Ciudad Juarez, across the border from the U.S. city of El Paso, Texas.

Police say the uncovered arsenal, in what is likely a drug safehouse, included machine guns, grenades, clips for high powered guns, gas masks, bulletproof vests and military uniforms. The Associated Press reports anti-aircraft guns and three money-counting machines were also found.

Police searched the house after receiving an anonymous tip.

German officials say three suspected al-Qaida members arrested on Friday had been planning a bomb attack in the country.

Prosecutor Rainer Griesbaum told a news conference Saturday that the trio had planned to attack a crowded place but had not yet picked a target. He said they were still in the experimentation stage.

Authorities said they decided to arrest the three when surveillance indicated they were pursuing making a detonator, a sign they might be close to carrying out an attack. The suspects had reportedly discussed planting the bomb on a bus.

Russian security forces have killed 10 suspected militants in a Russian region near the North Caucasus.

A Moroccan government official says authorities are investigating a possible al-Qaida link to a bombing Thursday in Marrakech that left 16 people dead.

Communications Minister Khalid Naciri said Friday that investigators are pursuing all possible leads, including al-Qaida which has an active offshoot in the region.

The blast tore the facade off a two-story cafe in Jemaa el-Fna square in the heart of Marrakech. Authorities say at least 10 foreigners were among the dead.

The European Union's anti-piracy force says Somali pirates have released a cargo ship after occupying it for 133 days.

Morocco's interior ministry says initial evidence suggests that an explosion that ripped through a cafe in a popular square in Marrakech was a bomb attack.

Pakistani officials say a roadside bomb has hit a bus carrying navy personnel in Karachi, killing five people, in the third such attack this week.

Thursday's blast killed four navy employees and a civilian on a motorcycle. Five people were wounded and nearby buildings and vehicles were damaged in the bombing.

The Taliban has claimed responsibility for the attack, as well as for a pair of blasts Tuesday that also targeted buses carrying navy personnel in the southern port city. Those attacks killed four people and wounded more than 50 others.