BEJIING - Google Inc said on Monday it has cut commercial ties with two of its Chinese advertising agents, raising concerns that the Internet giant's recent standoff with the government may scare away more domestic advertisers.

The US-based search engine has ended partnerships with Universal Internet Media and Xi'an Weihua Network, which are the major advertising agents for Google in East and Northwest China, Marsha Wang, spokesperson for Google China, told China Daily.

Universal Internet Media is based in Suzhou, Jiangsu province and Xi'an Weihua Network is based in Xi'an, capital of Shaanxi province. The two are among 25 of Google's authorized adverting agents in the country.