TEHRAN (AFP) - More than 200 Iranian MPs have told President Mahmoud Ahmadinejad he must have experienced ministers in his cabinet if it is to win a confidence vote in parliament, the ISNA news agency said on Tuesday. Iranian Opposition leaders meanwhile said 69 people were killed in protests after a disputed election in June - more than double the official toll of 26 - and parliament has promised to investigate, pro-reform newspapers said on Tuesday. Ahmadinejad, whose disputed re-election in June set off the most serious crisis in the history of the Islamic republic, is due to submit his new cabinet next week after being sworn in for second four-year term on August 5. "Your colleagues... must be practically committed to the constitution and leadership, have revolutionary spirit... adequate experience and expertise," the 202 MPs said in a letter read out in parliament. The lawmakers said Ahmadinejad's ministers must meet these conditions if he wanted their "maximum cooperation and effort during the vote of confidence." Ahmadinejad has already come under fire from within his own hardline camp over a number of controversial political decisions amid a deep crisis that has exposed rifts within the ruling elite in the Islamic republic. Conservatives were furious after Ahmadinejad appointed a controversial aide as his first deputy and took his time in carrying out supreme leader Ayatollah Ali Khamenei's order that he be sacked. Esfandiar Rahim Mashaie eventually stepped down from the post of first vice president but conservatives were further irked when Ahmadinejad sacked the intelligence minister following a "quarrel" over Rahim Mashaie. One leading conservative lawmaker Gholam Reza Mesbahi Moghaddam complained that Ahmadinejad was refusing to consult MPs about possible cabinet members. "If he did so, it would certainly have a positive impact (in the confidence vote)," he was quoted as saying by the Mehr news agency. Many conservatives have joined an outcry led by reformist opponents of Ahmadinejad over the treatment of more than 4,000 people officials say were detained throughout Iran during demonstrations after the vote. "The names of 69 people who were killed in post-election unrest ... were submitted to parliament for investigation. The report also included the names of about 220 detainees," Alireza Hosseini Beheshti, an ally of moderate presidential candidate Mirhossein Mousavi, was quoted by Sarmayeh daily as saying. Judiciary spokesman Alireza Jamshidi told a news conference more than 4,000 protesters had been detained after the election, of whom 3,700 had been released within a week of their arrest. Among those still in prison are senior pro-reform politicians, journalists, activists and lawyers. Parliament Speaker Ali Larijani said after a meeting on Monday with a committee set up by opposition leaders to pursue the issue that the assembly would carefully review cases of detainees and those killed, Etemad-e Melli newspaper said.