The U.S. Embassy in Ukraine is now urging U.S citizens in Ukraine to try leaving using private transportation options as leaving could in some cases take more than 30 hours. The embassy said Sunday "conditions may deteriorate" in various parts of the country without any warning due to the escalating Russian invasion. "Careful consideration should be made to routes and the risks of travel because Ukraine's roads are in many cases crowded, exposed to combat operations, and infrastructure such as bridges in some locations have been destroyed. Sheltering in place may remain the best option for some," the embassy said on its website. (https://news.yahoo.com/russian-troops-enter-second-largest-080130265.html) Furthermore, embassy officials say that border crossings into neighboring Poland and all main crossing points into Moldova are overwhelmed. "Some are experiencing extremely long wait times (well over 30 hours in some cases)," the embassy said. "We recommend that, if possible, U.S. citizens consider redirecting to border crossings with Hungary, Romania, and Slovakia, which are currently experiencing lower wait times to cross." Embassy officials also offered a series of tips including bringing enough food, water and warm clothing. They also urge citizens to carry hard copies of important documents as the U.S. government will not be able to evacuate its citizens from Ukraine.