Attackers shot dead a lawyer and his two sons aged 12 and 15 in Karachi on Tuesday in a suspected sectarian attack, police said, the latest in a wave of violence against Pakistan's Shiite Muslims.

The men, on a motorbike, gunned down high court lawyer Kausar Saqlain and his sons Owais Abbas and Mohammad Abbas as he took them to school.

A landslide in central Mexico smothered a road with rocks, mud and trees, killing seven people driving on the motorway, police said.

Sunday's accident happened in the central state of Hidalgo when part of a hill slid down onto the road, Federal Police said.

An American F-15 fighter crashed into the sea after its pilot ejected from his plane off Japan's southernmost Okinawa prefecture on Tuesday, the U.S. Air Force said.

"A Kadena-based F-15 aircraft developed a problem that ultimately resulted in the pilot ejecting from the aircraft over the Pacific Ocean approximately 70 miles (110 kilometers) east of Okinawa," the air force said, referring to the hub of American air power in the Pacific.

Five Thai security personnel have been killed in a fresh spate of gun and bomb attacks which the government on Tuesday blamed on insurgents seeking to disrupt a fragile peace process.

Despite two rounds of peace talks since March, near-daily bloodshed in the Muslim-dominated deep south near the border with Malaysia has raised questions over how much control rebel leaders hold over radical militants.

The International Criminal Court on Monday denied an African Union charge that it was racist and said it would not respond to an AU call for Kenyan leaders' crimes against humanity trials to be moved to their home country.

"The International Criminal Court will not be reacting to African Union resolutions," ICC spokesman Fadi El Abdallah told Agence France Presse after the pan-continental bloc urged the Kenyans' trials be taken out of the ICC's hands.

The Islamists who carried out two attacks last week in Niger which killed 38 people did not come from Libya, as charged by the Niger authorities, Libyan Prime Minister Ali Zeidan said Monday.

Such allegations "are without basis," Zeidan said after meeting EU President Herman Van Rompuy in Brussels.

The African Union said Monday it will set up an emergency military force to rapidly quell conflict on the continent, amid frustration that a planned peacekeeping force was still not operational after a decade.

"Almost all countries have agreed that we will have rapid response capability in Africa," AU chairman and Ethiopian President Hailemariam Desalegn told reporters at the close of a two-day AU summit.

Cambodian Prime Minister Hun Sen on Monday called for a new law banning statements denying that genocide was committed under the Khmer Rouge regime in the late 1970s.

The strongman leader called for legislation similar to that barring Holocaust denial in countries such as Germany and France, after comments attributed to a member of the opposition emerged, questioning the Khmer Rouge's role in a notorious prison under the hardline communist regime.

Niger's president said Monday that attackers who bombed an army base and French-run uranium mine, leaving 38 people dead, entered his country from southern Libya, where he warned further attacks were being planned on Chad.

"For Niger in particular, the main threat has moved from the Malian border to the Libyan border. I confirm in effect that the enemy who attacked us... comes from the (Libyan) south, where another attack is being prepared against Chad," said President Mahamadou Issoufou.

Serbia and Kosovo have adopted a roadmap on implementing their historic deal to normalize relations, taking another step key to their integration into the European Union, officials said on Monday.

The governments in Belgrade and Pristina both approved an implementation plan to their landmark EU-brokered deal reached in April for the former foes to normalize relations, officials said.