Datuk Seri Dr Wan Azizah Wan Ismail has refused to reveal the contents of Parti Keadilan Rakyat's (PKR) second letter to Istana Selangor.

The PKR president also declined to say whether the names of other candidates for the post of menteri besar were included in the letter sent on Tueday.

"We'll wait, for a response from the palace," she told reporters here, today after attending an English Reading Programme graduation ceremony and the presentation of aid under Tabung Warisan Anak Selangor (Tawas).

On Tuesday, the PKR and DAP sent letters to Istana Selangor after they incurred the wrath of the Sultan of Selangor for sending only one name for the menteri besar's post.

The PKR and the DAP also sought forgiveness from the Sultan of Selangor.

However, PKR adviser Datuk Seri Anwar Ibrahim and DAP secretary-general Lim Guan Eng defended their actions over the candidacy for the menteri besar's post.