The PSNI described the attacks as a "mindless, reckless attempt to kill officers".
A spokesman for the Police Service of Northern Ireland (PSNI) said details about the exact nature of the incident were unclear, but confirmed that the two officers had not been hurt.
He said they had been carrying out duties in relation to serious crime in the area when they were targeted.
Northern Ireland First Minister Peter Robinson said on Twitter: "My thoughts are with the officers targeted in Belfast. A futile act which could have resulted in carnage for anyone in the vicinity."
Sinn Fein MLA Alex Maskey also condemned the attack.
"This attack happened in the early evening in a busy area and could have killed or seriously injured anyone in the area at the time," he said.
"Thankfully no-one was injured, but it was a frightening experience for people in the area."
Justice Minister David Ford: "I unreservedly condemn the appalling attack on police officers in Belfast this evening.
"This was clearly an attempt to kill police officers serving the community. Those responsible for this cowardly act have also shown absolutely no regard for local residents. I am very thankful that no one was injured.
"I would urge anyone with information to pass it to the PSNI on the 101 number or to the Crimestoppers charity on 0800 555 111. The sooner these criminals face justice the safer our community will be."