U.S. President Donald Trump said on Monday that Saudi Arabia and other OPEC nations could "more than make up" for any drop in Iranian oil supplies to global markets now that his administration has decided to end waivers that allowed some nations to buy Iranian oil without facing U.S. sanctions.

Saudi Arabia said on Monday it had arrested 13 individuals in connection with planning attacks in the kingdom, a day after security forces said they had thwarted an attack north of the capital, state news agency SPA reported.

Saudi Arabia said on Monday it would coordinate with other oil producers to ensure an adequate crude supply and a balanced market after the United States said it would end waivers granted to buyers of Iranian oil.

Saudi Arabia is willing to compensate for any potential loss of crude supply if the U.S. ends waivers granted to buyers of Iranian oil, but the kingdom will assess the impact on the market before raising its output, a source familiar with Saudi thinking told Reuters on Monday.

Saudi Arabia is willing to compensate for any potential loss of crude supply if the U.S. ends waivers granted to buyers of Iranian oil, but the kingdom will assess the impact on the market before raising its output, a source familiar with Saudi thinking told Reuters on Monday.