Multiple explosions have rocked Kano, the biggest city in northern Nigeria.

The BBC's Yusuf Yakasai in the city says there is pandemonium with people running all over the place and plumes of smoke rising into the sky.

One of the blasts hit the police headquarters and two other police stations, he says.

No-one has claimed responsibility for the attacks, but Islamist militants have been behind a recent campaign of violence in the mainly Muslim north.

Our reporter says after the explosions, gunshots could be heard.

The blasts targeted different neighbourhoods of the city.

So far he is aware of explosions at the police headquarters in the west, one police station in the centre, and another police station in the south.

A reporter for the AP news agency said one of the explosions was powerful enough to shake his car several miles away from the blast.

The Islamist Boko Haram group, whose name means "Western education is forbidden", wants to establish Sharia (Islamic law) in Nigeria and started to stage drive-by shootings in 2010 on government targets in its base in the north-eastern city of Maiduguri.

It has stepped up its attacks in 2011, attacking the headquarters of the police and the UN in the capital, Abuja.

In recent weeks, southerners, who are mostly Christians or animists, living in the north have been the targets of deadly attacks.

http://www.bbc.co.uk/news/world-africa-16658493

Na Wao! Which way Nigeria? This is getting out of hand. . .

Report reaching me has it that More than 20 explosion in Kano. This BH guys are getting more daring.

Let Jona be joking.

Cancerous i would say, it's eating deeper. Something must be done and the earlier the better.

Osama10:

Let Jona be joking.

please spare me the craps,what the phuck everything you guys blame President,GEJ will work as president work as army work as police work as magistrate.if i may ask you the boko boys and their sponsors that was arrested where are them? today i read that one stupid judge had just release six boko haram what does that tell you.please we need to adjust our hatred over this president.we must not place all our anger on him.

9ja_I_hail:

please spare me the craps,what the phuck everything you guys blame President,GEJ will work as president work as army work as police work as magistrate.if i may ask you the boko boys and their sponsors that was arrested where are them? today i read that one stupid judge had just release six boko haram what does that tell you.please we need to adjust our hatred over this president.we must not place all our anger on him.

pls tell them. Everything that happens they will start calling GEJ. Even the troubles we cause by ourselves.