* Wife of guard says hostages executed after raid began
* Says her husband was killed in the rescue raid
* Italian media say Britain condescending to Rome (Adds Italian media, political comment)
By Farouk Umar
SOKOTO, Nigeria, March 10 (Reuters) - The wife of one of the guards who held a Briton and an Italian hostage in northern Nigeria said on Saturday the two men were taken into a toilet and shot dead during a failed attempt to rescue them by British and Nigerian forces.
The wife, who gave her name only as Hauwa and said she was 31, cried into her hands as she spoke to Reuters.
Chris McManus and Italian Franco Lamolinara were kidnapped last May while working for a construction company in northwest Nigeria. They were killed on March 8 by their captors after gunfire erupted during an abortive rescue attempt. .
Lamolinara's body was returned to Rome on Saturday and received with full honors by the justice minister. It was taken to a hospital for an autopsy.
Hauwa said bullets flew into the room where she and her husband were staying, killing her husband.
"After that, there were about six men who came out of the house with the two hostages," she said. "They came into our wing of the compound, pushed the captives into the toilet and just shot them. I screamed."
She denied knowing the hostages had been living in the same compound as her. She said they were kept in the main house which she was strictly forbidden to enter.
Nigerian authorities have detained five Islamist militants suspected of involvement in the kidnapping. Two of the men were arrested before the rescue attempt and three at the compound where the raid took place.
"I don't know why they didn't arrest me, I really didn't know anything about the hostages. No guard was allowed in the main house. The forces saw me crying next to my husband's body, which they took away," she said.
She said she had lived in the house for four months after her husband got a job there as a guard. But she said she never suspected anything was wrong.
The people using the main house arrived at night and usually left very early in the morning, she said.
A diplomatic row broke out between London and Rome on Friday over Britain's failure to inform the Italian government before launching the botched hostage rescue mission..
Italian media on Saturday criticised Britain for viewing Italy as an unreliable second-class ally over London's failure to consult Rome before launching the rescue mission, and politicians stepped up demands that Britain provide a precise explanation of exactly what happened.
"This is a murky episode that absolutely must be cleared up," said Massimo D'Alema, a former prime minister who heads parliament's committee on national security.
"The reconstruction by the English is not convincing. The Italian government should have been notified in time and not after the fact," he said.
British Prime Minister David Cameron said the hostages were killed by their captors during a rescue mission involving Nigerian and British special forces. His government confirmed the Italians had not been informed until after the operation began.
Editorials in leading Italian newspapers suggested London feared Rome would have delayed or objected to the operation.
"It is not difficult to imagine that London, with a touch of arrogance, took into consideration our track record for resolving a lot of kidnappings by paying money, an approach the English do not appreciate," the leading Corriere della Sera said.
GRISLY CRIME SCENE
The crime scene was largely unguarded on Saturday with bystanders wandering in and out. Bullet holes and blood spattered the cream-coloured walls.
The floor of the toilet where Hauwa said the hostages had been shot was coated in semi-dried blood. The sink had been ripped off and lay next to a plastic waste paper basket and a bottle of bleach.
Two copies of the Koran lay in one bullet-marked room.
A senior source at the State Security Services (SSS) told Reuters on Saturday the five suspects detained had been transferred to a facility in the capital Abuja for questioning.
They included the ringleader of the kidnappers, a man going by the name of Abu Mohammed, the source told Reuters.
Authorities suspect a splinter group of Boko Haram, the radical Islamist organisation with links to al Qaeda's north African wing, was behind the kidnapping.
A purported spokesman for Boko Haram's main faction, based in the northeast, on Friday denied any part in the kidnapping.
Nigerian forces arrested two of the conspirators on Tuesday, including Abu Mohammed, near Sokoto. After interrogation, the two men led them to the compound.
Nigerian and British forces mounted a joint raid two days later. The source said three kidnappers were taken alive from inside the house and that the others were killed. (Additional reporting by Camillus Eboh in Abuja and Philip Pullella in Rome; Writing by Tim Cocks; Editing by Andrew Osborn)
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