Kuwaiti police investigating the deadly blaze at a wedding tent that killed 43 women and children say the ex-wife of the groom has confessed to starting it.

Media reports say the woman told police she had wanted to avenge ill-treatment by her husband before their divorce, the BBC said.

Earlier on Monday the Qabas newspaper said the 23-year-old ex-wife of the groom had told police she used petrol to set fire to the packed and highly inflammable wedding tent.

Later the Ministry of the Interior, quoted by the official news agency Kuna, announced that one person had been arrested on suspicion of causing Saturday's fire, but no further details were given.

The tent was consumed by flames in seconds in the worst civilian disaster in Kuwait's modern history.

Fire service officials said the tent had only one exit and did not meet fire safety regulations.

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