Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. EU, British Leaders Concede Big Gaps Remain in Post-Brexit Talks Associated Press BRUSSELS - Britain and the European Union provided sober updates Thursday on the state of post-Brexit trade discussions, with only two weeks to go before a potentially chaotic split. While Ursula von der Leyen, president of the European Union's executive commission, noted "substantial progress on many issues," she voiced concerns about the discussions taking place around fishing rights. British Prime Minister Boris Johnson also warned that a no-deal outcome seemed "very likely." The two spoke early Thursday evening, their latest in a series of conversations in the past couple of weeks aimed at unclogging the talks, which have moved at a snail's pace since Britain left the EU on January 31. Britain remains within the EU's tariff-free single market and customs union until December 31. A failure to reach a post-Brexit deal would likely lead to chaos on the borders at the start of 2021 as tariffs and other impediments to trade are enacted by both sides. The talks have gotten bogged down on three main issues -- the EU's access to Britain's fishing waters, the level playing field to ensure fair competition between businesses, and the governance of any deal. Following their latest conversation, von der Leyen warned that bridging big differences, in particular on fisheries, "will be very challenging." Negotiations, she added, would continue Friday. According to a statement from Johnson's office, the prime minister stressed that "time was very short" and that it "now looked very likely that agreement would not be reached unless the EU position changed substantially."