Al-Qaida in Islamic North Africa claimed responsibility in an Internet posting Saturday for a recent attack on an Algerian train station that killed a French engineer.

The statement also claimed responsibility for an attack on a military barracks and another at a cafe on June 4 and a roadside bombing June 5.

The authenticity of Saturday’s statement could not be independently verified, but it was signed by Al-Qaida in Islamic North Africa and appeared on a Web site commonly used by Islamic militants.

Two bombs in quick succession at the Beni Amrane train station on June 8 killed 13 people, according to an Algerian security official, who spoke on condition of anonymity on the day of the attack. The official said the dead included a French engineer, his driver, and eight soldiers and three firefighters who responded to the scene of the first blast.

But in an unusual move, the Algerian Defense Ministry said the next day that only two people, the Frenchman and his Algerian chauffeur, were killed in the attacks. Official death tolls are often not made public in Algeria and journalists must rely on security officials not authorized to speak on the record.

On Saturday, the terrorist group offered yet another conflicting casualty toll. The statement said two Frenchmen and eight Algerians were killed in a double bombing, about 60 miles southeast of the capital Algiers. The reason for the differences was not immediately clear.

The French Foreign Ministry declined to comment Saturday about the Internet post. The ministry previously said that only one French citizen died in the attack.

Al-Qaida in Islamic North Africa also claimed responsibility for a suicide attack on a military barracks on June 4 and a second bombing that day at a cafe in a beach neighborhood outside Algiers.

The group also claimed responsibility for a roadside bombing in the city of Boumerdes on June 5. In those attacks, the group also cited higher casualty tolls than those provided by Algerian security officials.

Though Algeria has battled an Islamic insurgency for years, the number of attacks has risen dramatically since the country’s main militant group vowed allegiance to al-Qaida in 2006.

Most of the country’s bombings have been claimed by al-Qaida in Islamic North Africa, formerly known as the GSPC. The group grew out of an insurgency that raged in the country in the 1990s.