A source at the Houthi information bureau said the recently-appointed U.S. ambassador was involved in deadly suicide attacks that targeted Houthi followers last week in Yemen.

Dhaif Allah Al-Shami said Gerald Michael Feierstein is implementing a U.S. plan similar to the one he carried out while he was in Pakistan.

Initial investigations found out those who committed the car bombings in Jawf and Saada last week had received funds for the two attacks from the envoy, he said.

"The perpetrators were sheikhs and tribal leaders Feierstein has recently met including those he met during his last visit to Amran province."

Al-Qaeda is a quixotic weapon and a cover to all plots in Yemen including recent car bombings, he made clear.

Furthermore, Al-Shami denied that the authorities participated in the investigations into the incidents, saying the security authorities are currently trying to defend themselves only.

Last week, the Houthi Group, with which the government reached a ceasefire early this year ending a six-year war in the far north, said the U.S. and Israeli intelligence services orchestrated the car bomb blast that killed 24 and injured others of its followers.

The attack was carried out against a convoy carrying the victims to mark Day of Al-Ghadir, a Shia holy day, in Jawf in the Northeast.

The attack bore the hallmarks of the U.S. intelligence, it said, adding: "none can benefit from the operation but the U.S."

Also on Friday when a second car bombing targeted its followers while attending a funeral in Saada, it directly accused the U.S. of being behind the operation. Two were killed and almost eight others were killed in Friday's attack.

Meanwhile, the government has not accused a specific group after the two blasts that came amid increasing attacks by Al-Qaeda throughout the country.