Førende nigeriansk dagblad ramt af dødbringende angreb mod avisens kontorer i hovedstaden Abuja og byen Kaduna.
Witnesses say at least one of the blast at the offices of ThisDay newspaper, a leading daily, was a suicide bombing, but officials have not confirmed this, reports BBC online Thursday.
No-one has said it carried out the blasts although the Islamist group Boko Haram has staged similar attacks.
Suspect held
Parts of the newspaper’s Abuja office, including the printing press, have been completely destroyed.
The Kaduna explosion happened outside a complex housing a number of newspapers, including ThisDay.
A suspect has been arrested and is thought to be a member of the Boko Haram group, news agency AFP quoted police as saying.
Deadly attacks
Boko Haram – whose name means “Western education is forbidden” – wants to establish Islamic law in Nigeria and has launched a series of deadly attacks across the country, including the capital, in the past 19 months.
Last month the group warned journalists not to misrepresent its views.