The European Union and several other countries have suspended passport renewals and travel bans in response to the deadly attacks on Paris.

But they are continuing to offer visas and permits to travelers from Iran, Libya, Somalia, Sudan, Syria, Venezuela and Yemen.

Many travelers have been caught up in a refugee crisis in Europe.

The United Nations says some 400,000 people have been displaced in the refugee crisis.

Some 3 million refugees have sought asylum in Europe in the last six months.

Some of the nations that have imposed travel bans and visas bans include Austria, Belgium, Bulgaria, Cyprus, Denmark, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Portugal, Romania, Slovakia, Slovenia, Spain and Sweden.

There are also a number of travel restrictions that have been put in place by the European Commission, which includes an arms embargo on Iran and a ban on arms exports to the Islamic Republic.

The U.N. says Iran is responsible for the deadly assaults.

The U.S. has accused Iran of supporting the attack.

The EU has imposed travel and visa bans on Iran, including on its oil sector and banks, but has not lifted the ban on its central bank.