A health worker takes a swab sample from a citizen for COVID-19 test in Qingdao, east China's Shandong province, Oct 12, 2020. (LI ZIHENG /  XINHUA)

BEIJING - Chinese health authority said Tuesday that it received reports of 13 new confirmed COVID-19 cases on the Chinese mainland Monday, including six that were domestically transmitted and seven imported.

No new deaths related to the disease or new suspected cases were reported Monday, according to the commission

All of the domestically-transmitted cases were from Shandong province, the National Health Commission said in its daily report.

READ MORE: Mainland reports no new local virus cases, 21 imported

Of the new imported cases, three were reported in Shanghai, two in Guangdong, one each in Inner Mongolia and Sichuan, the commission said in its daily report.

No new deaths related to the disease or new suspected cases were reported Monday, according to the commission. 

The commission also said on Tuesday that 15 COVID-19 patients were discharged from hospitals after recovery Monday with 228 patients still being treated, including one in severe condition.

ALSO REAＤ: Mainland reports 15 new coronavirus cases, all imported

Altogether 80,729 patients had been discharged from hospitals after recovery by Monday, the commission said in its daily report.

As of Monday, a total of 85,591 confirmed COVID-19 cases had been reported on the mainland, among whom 4,634 died of the disease. 

There were seven suspected COVID-19 cases on the mainland, while 8,291 close contacts were still under medical observation after 382 were discharged Monday, according to the commission.