UPDATE 4-Double car bombing in Algeria kills 11 - agency

(Adds bomb targeted Canadians, more comments, change byline and adds dateline)

By Abdelaziz Boumzar

BOUIRA, Algeria, Aug 20 (Reuters) - Two car bombs in Algeria killed at least 11 people on Wednesday, the day after an attack that left 43 dead at a military academy, Algerian press agency APS said quoting the Interior Ministry.

It was the bloodiest week in nearly a year in the OPEC member state, a major oil and gas supplier to Europe which is emerging from more than a decade of conflict with Islamist rebels.

There was no immediate claim of responsibility for the bombings on Wednesday at Bouira, 150 km (90 miles) east of Algiers, but they follow a spate of attacks by al Qaeda's north African wing.

State radio said the bombings targeted the local military commander inside an army barracks and Canadians working for a water project. The news agency said 31 people, including four military personnel, were wounded. All the dead were civilians.

The first bomb hit the barracks at 6 a.m. (0500 GMT) The second went off near a hotel 15 minutes later, exploding just as a bus passed by carrying workers to a dam construction site, APS said. Most of those who died were travelling on the bus.

APS did not specify the nationality of the dead and the radio did not make clear whether Canadians were among the victims.

The bombings appear to mark a tactical shift for militants who had previously specialised in ambushing troops in remote areas, analysts said. Some Islamic scholars in Algeria and abroad had argued that suicide bombings were un-Islamic.