- lsamist militant group Boko Haram been blamed for carrying out attack
- Witnesses said the gunmen arrived on three-wheel taxis
- Further setback to efforts to eradicate polio in Nigeria
- Religious clerics believe vaccines would sterilise children
By Jill Reilly
PUBLISHED: 11:56 GMT, 8 February 2013 | UPDATED: 12:01 GMT, 8 February 2013
Nine female polio vaccinators have been shot dead in two shootings in northern Nigeria.
Islamist militant group Boko Haram – a sect which has condemned the use of Western medicine – has been blamed for the attack.
In the first attack in Kano the polio vaccinators were shot dead by gunmen who drove up on a motor tricycle, reported the BBC.
Thirty minutes later gunmen targeted a clinic outside Kano city as the vaccinators prepared to start work.
Previously religious clerics had some of their followers stop receiving the vaccines saying that it would sterilise their children.
Boko Haram wants to impose Islamic law, or sharia, on a country of 160 million split roughly equally between Christians and Muslims.