KYIV, July 18 - President Volodymyr Zelensky expanded the shakeup of his security services on Monday by suspending 28 more officials, a day after he dismissed two senior officials over allegations that their agencies harbored “collaborators and traitors.”

In his nightly video address, Zelensky said a “personnel audit” of the Security Service of Ukraine (SBU) was underway, and the dismissal of the 28 officials was being decided, The Associated Press reported.

Different levels, different areas of focus. But the reasons are similar — unsatisfactory results of work,” Zelenskyy said.

On Sunday, he had fired SBU chief Ivan Bakanov and Prosecutor General Iryna Venediktova. Zelensky, citing hundreds of criminal proceedings into treason and collaboration by people within their departments and other law enforcement agencies.

“Six months into the war, we continue to uncover loads of these people in each of these agencies,” said Andriy Smirnov, deputy head of Ukraine’s presidential office.

Analysts said the moves are designed to strengthen Zelensky’s control over the army and security agencies, which have been led by people appointed before the Russian invasion began on Feb. 24.

“In the conditions of a war, Zelenskyy needs leaders that are capable of tackling several tasks at the same time -- to resist Russia’s intrigues within the country to create a fifth column, to be in contact and coordination with international experts, to do their actual job effectively,” Volodymyr Fesenko, a political analyst with the Penta Center think tank, told The Associated Press.

Bakanov is a childhood friend and former business partner of Zelenskyy, who appointed him to head the SBU. Bakanov had come under growing criticism over security breaches since the war began.

Venediktova won international praise for her drive to gather war-crimes evidence against Russian military commanders and officials, including Russian President Vladimir Putin, over the destruction of Ukrainian cities and the killing of civilians.

U.S. State Department spokesman Ned Price, speaking to reporters in Washington, said when asked about the personnel changes that the two governments were in close contact.

“The fact is that in all of our relationships, and including in this relationship, we invest not in personalities. We invest in institutions and, of course, President Zelenskyy has spoken to his rationale for making these personnel shifts,” Price said.

He said Washington would continue to work with Kyiv on war-crimes investigations and information sharing. Intelligence, he said, is “an important element of the assistance that we are providing to our Ukrainian partners in an effort to help them defend themselves.”

Zelensky appointed the first deputy head of the SBU, Vasyl Maliuk, to be acting head. Maliuk, 39, is known for efforts to fight corruption in the security agencies; his appointment was seen as part of Zelenskyy’s efforts to get rid of pro-Russian staffers in the SBU. (ap/ez)