EBay Inc. is suing Amazon.com Inc. for allegedly poaching sellers on its marketplace, The Wall Street Journal reported Oct. 17, citing the lawsuit filed in Santa Clara, Calif.

According to the report, eBay is accusing the e-commerce titan of infiltrating its internal member email system to lure high-value eBay sellers to Amazon.

Earlier this month, eBay sent Amazon a cease-and-desist letter ordering it to stop poaching sellers using eBay's messaging system. In the letter, eBay said Amazon sales representatives in the U.S and abroad are trying to convince its sellers to jump ship.

eBay reportedly cited alleged evidence in the complaint, such as messages sent to its sellers that followed similar patterns or were identical. The company said several of the accounts that were used to send the messages were made using devices linked to Amazon internet protocol, or IP, addresses, the WSJ reported.

The lawsuit also states that Amazon representatives have acknowledged that they were violating eBay's rules, the newspaper said.

In the complaint, eBay is reportedly asking to permanently restrain Amazon from unlawfully using its messaging system, and for financial relief in the form of unspecified damages.

The lawsuit accuses Amazon of intentionally interfering with contractual and economic relations, as well as breaching California's Comprehensive Computer Data Access and Fraud Act, according to the report.