Guardian report said on Friday that the US has carried out at least eight assassination drone strikes in Yemen over the past two weeks.
The report said that the drone strikes have killed 34 people since July 27.
The drone attacks have mainly targeted the central province of Marib and eastern province of Hadramawt, according to the report.
The United States says the CIA-run drone strikes primarily kill al-Qaeda militants, although casualty figures show that Yemeni civilians are often the victims of the non-UN-sanctioned attacks. The United Nations has called the US drone attacks targeted killings that flout international law.
The United States says its embassy in Yemen will remain closed while 18 US embassies and consulates across the Middle East and North Africa will reopen on Sunday and Monday.
On August 4, the US shut the 19 diplomatic missions citing the threat of a major attack by al-Qaeda.
On Friday, US State Department spokeswoman Jen Psaki said, "Our embassy in Sana’a, Yemen, will remain closed because of ongoing concerns about a threat stream indicating the potential for terrorist attacks emanating from al-Qaeda in the Arabian Peninsula."
In addition, she said Washington would keep its consulate in the Pakistani city of Lahore closed. On Thursday, the US government ordered the evacuation of most diplomats from its consulate in Lahore due to “threats” of attack.
"Our consulate in Lahore, Pakistan, which closed due to a separate credible threat to that facility, will also remain closed," she said.