* State media says verdict to be announced at later date

* Kovrig one of two Canadians arrested in late 2018 in China

* Two Canadians' fate seen linked with Huawei CFO Meng's arrest in Canada condemns lack of transparency of trials (Adds comments from Canada's foreign ministry)

By Yew Lun Tian

BEIJING, March 22 (Reuters) - The trial of Canadian Michael Kovrig, who has been held in China for more than two years on espionage charges, wrapped up in a closed Beijing courtroom on Monday with the verdict to be announced at an unspecified later date, according to state media.

China arrested Kovrig, a former diplomat, and fellow Canadian Michael Spavor in December 2018, soon after Canadian police detained Meng Wanzhou, chief financial officer of Chinese tech company Huawei Technologies, on a U.S. warrant.

Beijing insists the detentions are not linked to the detention of Meng, who remains under house arrest in Vancouver as she fights extradition to the United States. Beijing has repeatedly called on Ottawa to release her.

The Kovrig trial came just days after the United States raised concerns over the cases at tense talks with China in Alaska. On Monday, Canadian and other diplomats were denied access to the hearing.

William Klein, charge d'affaires of the U.S. embassy in China, told reporters outside the courthouse as he stood beside his Canadian counterpart that the United States would treat the cases of the two men "as if they were American citizens."

Canadian Foreign Minister Marc Garneau said "the eyes of the world are on these cases" and thanked international partners for their support.

In a show of solidarity, 28 diplomats from 26 countries, including the United States, Britain, Germany, Australia, Netherlands and Czech Republic, turned up outside the Beijing No. 2 Intermediate Court on Monday, where there was a heavy police presence.

"We are deeply troubled by the total lack of transparency surrounding these hearings and we continue to work towards an immediate end to their arbitrary detention," Garneau said in a statement.

China's state media outlet CCTV reported that Kovrig and his lawyer were in court and that the verdict, like the one for Spavor, who was tried on Friday, would be announced at a later date.

"We've requested access to Michael Kovrig's hearing repeatedly but that access is being denied" for national security reasons, Jim Nickel, charge d'affaires of the Canadian embassy in China, told reporters outside the Beijing court. "Now we see that the court process itself is not transparent. We're very troubled by this."