Oct 1 (Reuters) - Following are security developments in Iraq at 1845 GMT on Friday.

BAGHDAD - Gunmen in a speeding car opened fire and wounded a senior security officer, Lieutenant Colonel Ahmed Abdul-Wahid Alwan, in the Karrada district of central Baghdad, an Interior Ministry source said.

BAGHDAD - A roadside bomb exploded near a checkpoint manned by members of the government-backed Sunni Sahwa militia, killing three people and wounding seven others in Baghdad's southern district of Doura, police said.

MOSUL - Gunmen shot dead a policeman in a crowded market in the centre of Mosul, 390 km (240 miles) north of Baghdad, police said.

MOSUL - A roadside bomb went off near an Iraqi army checkpoint killing one soldier in eastern Mosul, police said.

MOSUL - Gunmen opened fire at a police checkpoint and killed one policeman in southern Mosul, late on Thursday, police said. Two policemen were wounded when a roadside bomb went off as they were chasing the gunmen.

BAGHDAD - Gunmen using weapons equipped with silencers killed one person and wounded two others when they opened fire at their car in Baghdad's northern district of Adhamiya, late of Thursday, police said.