Saudi Arabia has detained 139 suspected Islamist militants including a would-be suicide bomber, Al Arabiya television said on Saturday.
The militants were not Saudi nationals and included leaders of several cells, it said, citing a Saudi Interior Ministry statement.
Saudi authorities have been seizing dozens of al Qaeda members or sympathisers around the country for months.
Arabiya said the suspected suicide bomber was captured with the equipment to carry out a large attack but gave no more details about the plot.
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