Police sources told Reuters that at least 33 people were killed by a suicide bomber driving a car and gunmen disguised as police stormed a police headquarters in Kirkuk, northern Iraq.
Kirkuk, a religiously and ethnically mixed area of Arabs, Kurds and Turkman, is at the heart of a dispute over oil and land between Baghdad's central government and the autonomous Kurdistan enclave in the north.
The Sunday morning blast wounded at least 70 more people and police said there were still bodies trapped under the collapsed debris of buildings after the attack.
More top news
The study by the National Childbirth Trust and National Federation of Women's Institutes found a lack of staff left some women frightened.
Extracts released by 10 Downing Street suggest Mrs May will say the UK will not settle for a "half-in, half-out" policy.
Milder for most of us