Depending on the country where the visa is being applied for, the Russian consulate may require additional documents for the processing of a visa appliction. They could include, for example, financial documents confirming the possession of sufficient resources for the trip to Russia and return to the applicant's homeland. Citizens of a number of countries, when applying for a Russian visa, must present the original return tickets for their trip. Such rules are in effect for the citizens of India, Iraq, Iran, North Korea, China, Syria, Turkey and several other countries. In certain cases, US citizens must also present their air tickets when submitting their visa applications.