Police search Navalny headquarters in late-night raid

In this photo provided by the Babuskinsky District Court, Russian opposition leader Alexei Navalny stands in a cage during a hearing on his charges for defamation, in the Babuskinsky District Court in Moscow, Russia, Friday, Feb. 5, 2021. The European Union's top diplomat has told Russia's foreign minister that the treatment of Russian opposition leader Alexei Navalny represents
In this photo provided by the Babuskinsky District Court, Russian opposition leader Alexei Navalny stands in a cage during a hearing on his charges for defamation, in the Babuskinsky District Court in Moscow, Russia, Friday, Feb. 5, 2021. The European Union's top diplomat has told Russia's foreign minister that the treatment of Russian opposition leader Alexei Navalny represents "a low point" in the relations between Brussels and Moscow. EU foreign affairs chief Josep Borrell met with Russian Foreign Minister Sergey Lavrov in Moscow days after Navalny was ordered to serve nearly three years in prison. (Babuskinsky District Court Press Service via AP)AP

MOSCOW (AP) — Russian police conducted a late-night search of the headquarters for jailed opposition leader Alexei Navalny, whose arrest last month set off nationwide protests.

The search by a dozen police ended about 1 a.m. It was not immediately clear if the police took away items as potential evidence, but photos posted by Navalny’s staff on social media showed them bagging material including a coffee mug.

There was no statement from police about the reason for the search; the Mediazona news website that focuses on political repressions and human rights abuses cited a Navalny staff member as saying that police said they had received a report that pornography was being published at the office.

Navalny was arrested on Jan. 17 when he returned to Russia from Germany, where he had spent five months recovering from nerve-agent poisoning that he blames on the Kremlin.

He later was ordered to serve 2 1/2 years in prison on the grounds that his time in Germany violated a suspended sentence he was handed in a money-laundering and fraud conviction.

The arrest sparked protests throughout the county on two weekends in January, in which a total of about 10,000 people reportedly were arrested.