Asharq Alawsat has this brief piece about more anti-terror arrests in Saudi Arabia, following those announced two days ago involving threats against the Hajj. More as details become known.

Ministry: 28 Arrested in Saudi Arabia

RIYADH, Saudi Arabia, (AP) -Saudi Arabian police have arrested 28 men for allegedly planning to attack holy sites around Mecca and Medina during the recently finished Muslim hajj pilgrimage, the kingdom’s Interior Ministry said Sunday.

The announcement comes two days after the ministry said it arrested an unknown number of men after security forces foiled a plot to carry out a terror attack on holy sites outside Mecca. But Sunday’s statement did not say whether the two were arrests were related.

The ministry said 27 of the men were Saudi nationals and one was a foreign resident.
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Here’re the Reuters report and that of the official Saudi Press Agency. Neither adds much information.