US regulators have recommended pausing the use of Johnson & Johnson's Covid-19 vaccine as they investigate rare blood clotting in six women, including one who died.

J&J also said it was delaying the rollout of its vaccine in Europe. US officials said the temporary halt is expected to last only a few days.

The move comes after Europe's drug regulator said it had found a possible link between AstraZeneca's Covid-19 vaccine and very rare blood clots in some adults who had received the shot...