I'm afraid I must attend to something urgent.

Meaning

More formal way to excuse oneself.

Examples

• John: 'Shall we proceed with the presentation?'
• Alice: '<b>I'm afraid I must attend to something urgent</b>. Please continue without me.'
• John: '<b>I'm afraid I must attend to something urgent</b>. Please excuse me.'
• Alice: 'Are you ready for the next point?'