1. President Donald Trump's national security adviser has quit. Michael Flynn resigned suddenly late Monday night. He reportedly misled Vice President Mike Pence over conversations with Russia's ambassador by telling Pence he had not discussed sanctions on Russia in December.

2. European benchmarks were mixed on Tuesday after German gross domestic product data came in worse-than-expected for the fourth-quarter.

3. In Asia Toshiba (TOSBF) shares fell by more than 8% after the Japanese electronics giant delayed the release of its financial statements, in which it is expected to report a record writedown of its nuclear business, reportedly due to so-called snags in the audit process.

4. China's inflation numbers hit a multi-year high in January when the producer price index shot up to 6.9%, the highest level since 2011.