ABUJA - A bomb exploded outside a nightclub popular with foreigners and wealthy Nigerians in the capital Abuja late on Friday but no one was injured, an emergency agency said on Saturday.

Windows of nearby buildings were shattered and six luxury vehicles were damaged in the blast, which struck at 11:25 p.m., an emailed statement from National Emergency Management Agency spokesman Yushau Shuaib said.

"The explosives were suspected to be planted on a tree opposite Kryxtal lounge, a relaxation spot in Wuse," the statement said.

Radical Islamist sect Boko Haram has killed hundreds in bomb and gun attacks this year in its insurgency against President Goodluck Jonathan's government.

Its attacks usually focus on authority and religious targets in the largely Muslim north but it has struck in the capital several times, including a suicide bomb at the UN building last year that killed 24 people.

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