U.S. President Barack Obama will in late July become the first sitting American leader to visit Ethiopia and the headquarters of the African Union, the White House said Friday.

Obama's trip to Addis Ababa will come directly after an already announced trip to Kenya, his first as president to his father's homeland, press secretary Josh Earnest announced.

A man sprayed gunfire and planted several bombs at Dallas police headquarters in a rampage that came to a brutal end when snipers shot him dead after several terrifying hours Saturday.

Police said they were "blessed" that nobody was hurt and ruled out any connection to terrorism in the one-man assault that saw gunfire echo around the darkened streets of the sprawling Texas city and left destruction in its wake.

A wedding celebration at the posh Waldorf Astoria hotel in New York spun into chaos Saturday as a guest accidentally discharged a gun, shooting one person and leaving four others injured, The New York Times reported.

Four people were taken to hospitals for treatment and one with a minor injury was treated at the Waldorf, one of Manhattan's grand old hotels, the report said.

A visiting delegation of Republican U.S. lawmakers met Saturday with Cuban Vice President Miguel Diaz-Canel to discuss the island's economy and closer ties between Havana and Washington.

Diaz-Canel "welcomed this Saturday Republicans Jeff Flake, Susan Collins and Patrick Roberts, senators from Arizona, Maine and Kansas, respectively, who are paying a visit to Cuba," a presenter read out on state television.

The Cleveland police officer who shot dead a 12-year-old black boy seen waving around a replica gun was "distraught" and acted out of fear for his life, according to an official report released Saturday.

It comes two days after a judge ruled the two police officers involved should face criminal charges over the death of Tamir Rice in November -- a time of heightened racial tensions in the United States following a series of fatal incidents involving black men and boys.

Britain has been forced to remove some of its spies after Russia and China accessed the top-secret raft of documents taken by former U.S. intelligence contractor Edward Snowden, British media reported.

The BBC and the Sunday Times cited senior government and intelligence officials as saying agents had been pulled, with the newspaper saying the move came after Russia was able to decrypt more than one million files.

The Pentagon is "poised" to station heavy weapons for up to 5,000 American troops in several Eastern European and Baltic countries to deter Russian aggression, The New York Times reported Saturday.

The proposal, if approved, would be the first time since the end of the Cold War that the U.S. has had heavy military equipment -- including battle tanks -- in newer NATO members that were once under Moscow's influence as part of the Soviet Union.

A man suspected of spraying Dallas Police Headquarters with gunfire early on Saturday has been found dead in a van after a police sniper shot him and pipe bombs found in the vehicle were exploded, a police spokesman said.

Authorities said it was remarkable that no one else was killed or injured in the attack, which left the headquarters and police vehicles nearby riddled with bullet holes.

Germany's chief prosecutor has dropped a probe into the alleged tapping of Chancellor Angela Merkel's mobile phone by U.S. intelligence agencies, his office said Friday.

The suspected surveillance and rampant online spying by the U.S. National Security Agency (NSA) revealed by fugitive U.S. intelligence contractor Edward Snowden badly strained U.S.-German relations.

A Russian-American pleaded guilty Thursday to smuggling $65 million worth of electronic components to Russia including parts that ended up in the hands of Moscow's security services and nuclear experts.

Alexander Brazhnikov Jr, 36, a naturalized U.S. citizen born in Moscow, ran an elaborate scheme with the help of his father to illegally transport the components from America to Russia in violation of export control laws, the Department of Justice said.