Former first lady Barbara Bush went home Saturday after six days in hospital for pneumonia, a statement from the office of her husband, former president George H.W. Bush, said.

The 88-year-old thanked the doctors and nurses at the Texas hospital where she was admitted "for making sure I got the best treatment and got back to George and our dogs as quickly as possible," the brief statement said.

Back-to-back blasts on Saturday killed one and injured 11 others, including a senior politician, in the southwestern Pakistani province of Baluchistan, which borders Afghanistan and Iran, officials said.

In first attack, an explosives-packed motorcycle detonated at a taxi stand in the Sibi district of Baluchistan, killing one person and injuring nine others.

India's new anti-graft party announced Saturday it would contest most of the seats in upcoming general elections after its stunning poll showing in the nation's capital earlier this month.

One of the Aam Aadmi ("common man") Party's top leaders, Prashant Bhushan, announced the decision after the first day of a two-day meeting of the party's top decision-making body in New Delhi to plan strategy for the elections, due in May.

Pope Francis has pledged to donate $5 million to help pay off part of the debt accrued organizing the 2013 World Youth Day in Rio de Janeiro last July, the Brazilian city's archdiocese said.

"Aware" of the issue, the pope "indicated his intention to contribute financial aid to pay part of the expenses" of the major event, which he presided over soon after he was elected head of the world's 1.2 billion Roman Catholics, the archdiocese said on its website Friday.

Three Kurdish lawmakers suspected of ties to PKK rebel separatists were to be released from prison on Saturday, a day after two other Kurd parliamentarians were freed, a judicial source said.

Kemal Aktas, Selma Irmak and Faysal Sariyildiz would be freed "during the day" from prisons in Mardin and Diyarbakir, two cities in Kurdish-dominated southeastern Turkey, the source said.

Thirteen bodies were pulled from the wreckage of a building under construction that collapsed "like a house of cards" in a coastal village in the Indian tourist state of Goa on Saturday, authorities said.

The residential building caved in around mid-afternoon, when some 50 daily wage laborers, were working on the site, police said.

German vice-chancellor Sigmar Gabriel on Saturday called for a debate on the touchy issue of immigration from poorer EU states Romania and Bulgaria.

"I think it's not necessary to exaggerate this issue. But it shouldn't be minimized either," he said in an interview with Bild newspaper.

Thai Prime Minister Yingluck Shinawatra's party on Saturday kicked off campaigning for February elections in the face of an opposition boycott and protester plans to "shut down" Bangkok in a bid to derail the vote.

The Puea Thai party launched its re-election bid with rallies in its northern heartlands and on the outskirts of the capital, which has been shaken by weeks of sometimes violent anti-government demonstrations that have left eight people dead and about 400 wounded.

Turkish Prime Minister Recep Tayyip Erdogan, whose Islamist-leaning government is engulfed in a corruption scandal, on Saturday called the political crisis a "plot" against Turkey's "future and stability" by rival forces.

At a luncheon in Istanbul with generally pro-government intellectuals, writers and journalists, Erdogan reiterated his view that forces in Turkey and abroad are conspiring to oust him from power.

A secretive U.S. spy court has ruled again that the National Security Agency can keep collecting every American's telephone records every day, in the midst of dueling decisions in two other federal courts about whether the surveillance program is constitutional.

The Foreign Intelligence Surveillance Court on Friday renewed the NSA phone collection program, said Shawn Turner, a spokesman for the Office of the Director of National Intelligence. Such periodic requests are somewhat formulaic but required since the program started in 2006.