Sheikh

MEMORANDUM **

Muhammad Aamir Sheikh, a native and citizen of Pakistan, petitions for review of the Board of Immigration Appeals’ (“BIA”) order affirming an Immigration Judge’s (“IJ”) decision denying his applica *675 tion for asylum, withholding of removal, and protection under the Convention Against Torture (“CAT”). We have jurisdiction under 8 U.S.C. § 1252 . We review for substantial evidence, Li v. Ashcroft, 378 F.3d 959, 962 (9th Cir.2004), and we deny the petition for review.

Substantial evidence supports the BIA’s conclusion that Sheikh did not present credible testimony regarding his involvement with the Pakistan People’s Party Human Rights Cell. See Chebchoub v. INS, 257 F.3d 1038, 1043 (9th Cir.2001). The BIA pointed to material inconsistencies between the testimony and a letter allegedly written by a doctor who treated Sheikh after his detention. See id. Because the letter from Dr. Ahmed was submitted to corroborate the alleged acts of persecution that Sheikh endured, it was central to Sheikh’s claim and supports the BIA’s conclusion that Sheikh was not credible. See Desta v. Ashcroft, 365 F.3d 741, 745 (9th Cir.2004) (concluding that documents with questionable…