Five people were killed in a New Year's Eve hand grenade attack and shooting in a bar in the eastern Kenyan town of Garissa near the border with Somalia, police said Sunday.

"There was an explosion in a club in town shortly before midnight (Saturday) and five people died," a senior police officer at Northeast provincial headquarters told AFP.

Attackers fired a rocket-propelled grenade at a vehicle and killed four people in northern Kenya Thursday, police said.

"The vehicle was carrying eight people but four of them have died," a police officer in the region said on condition of anonymity.

When Sylvester Barasa, whose legs have been withered by polio, is not begging at the side of a highway in the Kenyan capital he is part of a contemporary dance troupe.

"It's a way of surmounting my handicap. It means I don't see the polio as something important any more. I don't pay attention to it anymore," he said.

Grenade blasts at a blue-collar bar and a crowded bus stop rattled Nairobi, as the country worried whether al-Qaida-linked militants from Somalia were carrying out their promise to launch reprisal attacks in Kenya's capital.

The attacks on Monday came only two days after the U.S. warned of "imminent" terror attacks.

A grenade was thrown into a discotheque in the Kenyan capital Nairobi early Monday injuring 14 people, all Kenyans, in an attack police linked with recent threats made by Somali Shebab insurgents.

"Yes, we are linking the grenade attack to the threats that have been issued by Shebab and that is why I am appealing to city residents to be vigilant and cooperate with our officers," Antony Kibuchi, provincial police chief for Nairobi, said.

With the war on AIDS nearing its 30th anniversary, the U.N. on Thursday declared "a moment of truth" had come for new strategies to address the campaign's failures and brake costs that were now unsustainable.

"We have a unique opportunity to take stock of the progress and to critically and honestly assess the