The suspected spokesman for the hard line Islamist group, Boko Haram has been arrested by the Nigerian Security Services (SSS), in a major coup in the war against terror.

But questions are being asked if Abu Qaqa's capture – if it turns out to be him since he uses a pseudonym – will have an impact on the campaign against the sect.

To many Nigerians, the news of Qaqa's arrest on Wednesday was an accomplishment for President Goodluck Jonathan's administration.

According to Reuters, an SSS team stormed Qaqa's home in the northern city of Kaduna in the early hours of Wednesday and found him hiding under his bed.

While Qaqa's arrest is relevant in the campaign against terrorism in Nigeria, the sect's purported leader Abubakar Shekau who posted a video of himself last month on YouTube could prove a more significant arrest.

Qaqa's security worth cannot be fully ascertained as he only often appeared in local media after bomb and gun attacks to claim them for Boko Haram and justify the choice of target.

"We are still talking to him. Since 'Abu Qaqa' is a pseudonym for the Boko Haram spokesman, we want to be sure of who we have with us.

"But we have been on his trail for months now. He's been changing locations and contacts," Reuters quoted a State Security Services (SSS) official.

Nonetheless, Nigerian security forces are moving fast and strong on Boko Haram following a string of deadly bombings and gun attacks.

Since the turn of the New Year, several arrests have been made including that of a prime suspect in the 2011 Christmas Day bombing of a church on the outskirts of Abuja.

Although the Christmas-Day church bomber escaped from police custody, prompting Jonathan to sack his police chief, authorities believe the group will soon be defeated.