At least one person was killed and several others were wounded Wednesday when a car bomb exploded in Somalia's capital Mogadishu, the latest in a string of attacks, police said.

The blast targeted a car belonging to a member of parliament who was not hurt in the attack.

At least three people were killed Friday when a suicide bomber rammed a car laden with explosives into a convoy of African Union troops in the Somali capital, police said.

"Three people are confirmed dead, and three others injured," said police official Ahmed Muktar, who was near the scene of the blast, the latest in a string of explosions in the dangerous capital.

Somalia's Shebab insurgents killed at least one person Tuesday when they set off a homemade bomb in the capital's main market, busy with shoppers preparing for the Muslim holy month of Ramadan.

Shebab spokesman Abdulaziz Abu Musab said its fighters had set off an improvised explosive device targeting security officials in Mogadishu's Bakara market, claiming to have killed three officials and wounded three others.

Battles between rival warlords in Somalia's key southern port city of Kismayo killed at least 71 people last month, U.N. officials said Friday, clashes Mogadishu has accused Kenyan troops of encouraging.

"Recent fierce fighting... continues to have a profound impact on civilians and humanitarian aid work in the Lower Juba region," the U.N.'s World Health Organization (WHO) said, adding the clashes also left more than 300 injured in June.

An American drone has crashed in Somalia, a U.S. official said Tuesday, after Shebab militants claimed to have recovered the wreckage.

"I can confirm an RPA (remotely piloted aircraft) crashed in a remote area of the Somali coastline south of Mogadishu," said the defense official.

Authorities are investigating a Canadian's possible death in Mogadishu after reports said he led a recent attack by Shebab Islamists on the main courthouse in the Somali capital.

The Royal Canadian Mounted Police "is aware there are media reports linking a Canadian to terrorist attacks in Mogadishu," Sergeant Greg Cox told Agence France Presse.

At least eight people were killed Monday by a car bomb in central Mogadishu in one of the bloodiest attacks in the war-ravaged capital in recent months, police said.

Security sources added that a top intelligence official was the target of the attack, and that he was wounded in the blast, although there was no immediate official confirmation.

At least three people were killed and several wounded in twin attacks at a restaurant on the popular beachfront of Somalia's capital Mogadishu, witnesses and police said Friday.

The blasts, the latest in a string of attacks in the war-ravaged city, were reportedly caused by a suicide attacker wearing a vest packed with explosives, followed by a car bomb.

Two suicide bombers attacked a restaurant in Somalia's capital Mogadishu on Saturday, wounding several people, police said, and killing one victim, according to a witness.

"There were two suicide bombers who attacked the Village restaurant. The two of them have died and other people who stayed in the place were injured. We are still investigating the casualties," said Abdi Adan, a Somali police officer.

An insurgent killed a woman and wounded three people when he hurled a grenade in a busy street in Somalia's war-ravaged capital, police and witnesses said Thursday.

"The woman died as people rushed her to the hospital," said Abdi Mohammed Ahmed, a bus conductor who witnessed the attack, in Mogadishu's central K4 district.