Abuja, June 29 (RHC)-- At least five people have been killed after a bomb attack hit a northeastern city of Nigeria, the African country's emergency services say. Nigeria's National Emergency Management Agency said on Sunday that at least 10 others sustained injuries in the attack near a leprosy hospital on the outskirts of the northeastern city of Maiduguri.

No group has claimed responsibility yet, but it bore the hallmark of terrorist attacks perpetrated by Takfiri Boko Haram group in various parts of Nigeria during the past six years.

On June 22-23, nearly 30 Takfiri militants attacked the villages in the northeastern Borno State, killing 42. Also on June 23rd, at least 10 people were killed in northeast Nigeria in a bombing attack carried out by a girl believed to be 12. The girl detonated her explosives at a market in the area of Wagir, in the Gujba district, south of Damaturu, the capital of Yobe State, Borno's western neighbor.

The militant group has stepped up its attacks since Nigerian President Muhammadu Buhari, a former army general came to power on May 29th. President Buhari, has vowed to curb Boko Haram's militancy.

Boko Haram militancy started in Nigeria in 2009 and has claimed the lives of some 15,000 people over the past years.