Afghan President Hamid Karzai suspects the United States may have backed insurgent-style attacks to undermine his government but has no evidence to support his theory, the Washington Post reported Tuesday.

Karzai, whose relations with Washington have steadily deteriorated over the years, has compiled a list of dozens of attacks that he believes the US government may have been involved in, the Post wrote, citing unnamed Afghan officials.

Karzai even harbors suspicions that the Americans may have been behind an attack this month on a Lebanese restaurant frequented by foreigners in Kabul, the newspaper said, quoting a presidential palace official....