The toll of dead from a suicide bombing in Algeria has risen to 19.
More than 100 people were also hurt in the attack on Thursday night when a suicide bomber blew himself up in a crowd which had been waiting for Abdelaziz Bouteflika, the Algerian president, to arrive in Batna.
The explosion happened outside the city's Al-Atik mosque, 430km southeast of the capital, Algiers.
Bouteflika later visited some of the 100 wounded in hospital.
There was no immmediate claim of responsibilty for the attack.
Bouteflika accused the attackers of trying to damage his policy of national reconciliation, which is aimed at ending 15 years of fighting between the army and anti-government groups.
The official APS news agency quoted him as saying: "Terrorist acts have absolutely nothing in common with the noble values of Islam."
Bouteflika insisted he would never abandon his national reconciliation policy.
Conflict broke out in Algeria in 1992 after military-backed authorities scrapped parliamentary elections that an Islamist party was set to win.
Thousands killed
Up to 200,000 people are estimated to have been killed in 15 years of violence.
Political violence has subsided in recent years but an estimated 500 fighters - now calling themselves al-Qaeda in the Islamic Maghreb -continue their battle, mainly in the Kabylie region, east of Algiers.
The group said it carried out co-ordinated attacks on the Algerian prime minister's office and a police station in an Algiers suburb on April 11 that killed at least 33 people and injured more than 200 others.
In July, 10 soldiers were killed and 35 people wounded when a suicide bomber drove a lorry packed with explosives into a barracks southeast of the capital.