Police have made one arrest after a security incident caused transportation delays for fans and athletes leaving Alexander Stadium following Saturday night’s session at the European track-and-field championships in Birmingham, England.

Elaine Thompson-Herah, the two-time reigning Olympic champion at 100 and 200 meters, will miss the Paris Games because of what she said is a small tear in her Achilles tendon.

Elaine Thompson-Herah, the two-time defending Olympic champion at 100 and 200 meters, had to be helped from the track after appearing to hurt her Achilles tendon in a race at the USATF New York City Grand Prix.