Short: Yes, confirm the deletion, but don't use an Action Sheet as a confirmation dialog, you should use an Alert for that:
Alerts [...] should only be used in important situations like confirming purchases and destructive actions (such as deletions) [...]
In their HMI guidelines on modality Apple states to minimize modality, but use it for critical actions.
Another option is to replace confirmation with the ability to undo:
Deletion: Confirm or Undo? Which is the better option and why?
Might also be interesting for you, for Action Sheets they recommend:
Use red for buttons that perform destructive or dangerous actions, and display these buttons at the top of an action sheet.